Parmalee sends Reese, Chad and Joe undercover, disguised as prospectors, to find Lazyfoot and his gang. In Aggie's Saloon they meet Grubby Sully who says he needs partners to get to his goldmine because it's in territory controlled by Lazyfoot. Chad and Joe lead the local sheriff to believe Reese is a wanted sheep rustler, giving them time to ride off with Grubby while Reese is locked up. The three are captured by Lazyfoot and Reese tracks them down. He frees only Grubby who he hopes will lead him to the gold mine. Reese returns to free Chad and Joe and foil Lazyfoot's plan to ambush Captain Parmalee and his reinforcements with a gattling gun. He then heads back to the mine. Chad and Joe get credit for the rescue and Parmalee thinks Reese was out looking for gold the entire time. Grubby eludes them and waves goodbye from the distance on the way to his real mine.

Parmalee sends Reese, Chad and Joe to Porfirio to investigate Mexican bandits but find elderly Alvar de Aveles flying a Mexican flag over the jail on Alamo Day. Reese breaks into the jail, through the roof, and talks to de Aveles. As this happens de Aveles companions, unknown to or approved by him, rob the entire town, including Chad and Joe. When they emerge from the jail Reese is knocked out and taken prisoner. Chad and Joe must stop the Mexican Bandits before they cross the border with Reese. Since everything was stolen they have to acquire boots, horses, guns, etc. along the way. After crossing the border Reese is made to walk and Aveles willingly joins him. When Chad and Joe catch up Reese gets to fight the gang's leader, Paco Vargas.

A New Hampshire deputy constable named Clendon Macmillan comes to Laredo with 9 years of experience, intending to improve the quality of the average Ranger. He would like to apply his modern law enforcement techniques to what he refers to as "" the most primitive law enforcement organization in the country - the Texas Rangers."" He is sent out with Reese, Chad, and Joe to track Running Antelope and Linda Little Trees. Chad and Joe take a fiendish delight enjoying the fact that no man has ever rubbed Reese the wrong way as easily as MacMillan does. They arrive at a town just raided by Running Antelope and find Linda Little Trees in jail. While the rest are having steaks with the Marshall Little Trees talks MacMillan into releasing her, saying she will take him to their hideout. He is taken prisoner and rescued by Reese, Chad and Joe. Upon their return to Laredo Parmalee offers MacMillan the toughest Ranger assignment ever but MacMillan declines saying he's needed back in New Hampsh

Reese, Chad and Joe chase Durkee, a wanted man, into Captain Parmalee's office only to find out he is seeking amnesty in return for information about the Jamison Gang. The three of them are assigned to work with him and sent to Arillo. Meanwhile, Sam Burns is trying to force Annamay, a widow with two children, off her ranch so he and Jamison can get the silver bars the Gang buried in her barn's floor. The Rangers help Annamay and the children repair her wagon wheel and she takes a liking to Reese, who the children are soon calling ""Uncle Reese"". Annamay learns of the silver and switches it to a new hiding place. Jamison and Gang threaten Annamay and the children as the Rangers hurry to rescue them and recover the silver.

Emily, an old girlfriend of Chad's, appears in Laredo with her father, a railroad tycoon. He offers Chad a $400 a month job, whether the romance between he and Emily works out or not. Reese and Joe try different schemes to bust up the romance but they backfire and Chad proposes to Emily and resigns from the Rangers. Reese and Joe are sent out to protect a wagon train from a possible Indian attack and they use it as one last ploy to keep Chad in Laredo. Reese rides back reporting that the train has been attacked but Chad doesn't believe him. Reese heads back and finds out the wagon train really is under attack, sending a rider back to Laredo. While waiting for the stage with Emily and her father Chad sees Parmalee with other Rangers leaving town and finds out Joe and Reese are in danger. He tells Emily he has to go and will catch up with the stage. She delivers an ultimatum that he must leave right away if he wants her. Chad tells her off, catches up with Parmalee, who reinstat

Chad sneaks into the barracks at night wearing only his underwear. Reese and Joe catch him and he explains he lost Billy Harker, the prisoner he was escorting. He gets a change of clothes, Reese's spare gun and a horse and heads back out. The next day Reese and Joe are sent out to catch the thief who stole the ranger horse, the only clue being Chad's muddy socks. They find Chad as he is wrestling with Laurie Martin, Harker's girl, a very convincing but deceptive young woman. She convinces Reese she was forced to help Harker out of fear and she leads him off to find Harker but knocks him out with a piece of wood instead. She is caught but tricks cattle drovers into thinking the rangers are outlaws and escapes during the ensuing fist fight and cattle stampede. Joe saw her escape but let her go saying if she thinks they aren't following she'll head right for Harker, which she does. The rangers track her to the outlaws hideout and capture or kill Harker and his gang in a shootout.

Reese, Chad and Joe get into a saloon fight defending the honor of the Rangers. Parmalee disciplines them by assigning them to escort Jerky Collins' wagon of smelly buffalo hides. Chad tries to dissuade unwanted, married admirer Marianne Montaigne but she wants to leave her husband Louis and Chad hides her out in the wagon load of hides until they're out of town. Because of the fight two saloon girls were fired by the owner, Fatty Brown. Reese helps them by loading Fatty's pi-annie into a buckboard and allowing them to follow along with the hides. Unknown to all a shipment of rifles have been hidden in the hides by the man who sold them to Broken Horn, a renegade. The trip is a party until the Indians attack.

Captain Parmalee sends Reese on a mission to pickup a special shipment and bring it back to Laredo. Reese brags about the mission before he leaves leading several people to believe it's the $100,000 in gold shipment that everyone's heard rumors about. After he picks up the shipment in a wagon Reese is challenged for it by the Baker Gang, Sheriff Wes Cottrell and his deputies, Ma Burns and her daughter Flame and an Old Timer, who just wants to see what $100,000 in gold looks like. Reese outwits them all until everyone but the Old Timer join forces, surround Reese and force him into a shoot-out. Meanwhile, Chad and Joe have been sent out to find out why Reese is two days late. They arrive during the gun battle and help Reese. The strongbox has been penetrated by bullets and the contents, 36 bottles of limestone Tennessee sippin' whiskey for Parmalee's private stock, is leaking out. Only 1 bottle is left for Reese to deliver to the Captain. Can he do it without breaking it?

The stage carrying State Senator Sparks and Captain Parmalee is held up by the Davis Gang, who takes the stagecoach horses forcing the Senator and Parmalee to walk to Laredo. Meanwhile, the Brannigan Brothers lose heavily in a card game and accuse Chad of cheating, which starts a fight in the saloon. The fight spills out onto the street just as the Captain and Senator Sparks arrive, giving the Senator a bad first impression of the Rangers. Reese, Chad and Joe set up a Texas style breakfast for Senator Sparks but the Brannigans ruin it and cause the tray of food to be dumped onto the Senator, who threatens to remove Ranger funding. Parmalee travels on the stage with the Senator to dissuade him from cutting the funding. Reese, Chad and Joe devise a plan to have their own ""outlaw"" gang, lead by Reese, stop the stage and then Chad and Joe will come to the rescue but a member of the real Davis Gang is in the saloon when Reese is recruiting and the plan backfires. This leaves the three

Reese, Chad and Joe capture the Slaughter Gang and take them to the nearest jail in San Sabo. They take the stolen money to the bank and meet Miss Emma there, who is a cultural lecturer selling tickets for her lectures on Greece with little luck. Chad and Joe trick Reese into helping her. He does so by employing saloon dancer Carlotta to warm up the crowd for Miss Emma's lecture. While Miss Emma is speaking a gang robs the bank and releases the Slaughters at the same time to throw suspicion on them. While pursuing the robbers Reese crosses paths with Miss Emma and discovers there may be more then meets the eye concerning the ""wealth"" of her wagonload of books.

Reese's friend Cletus Grogan comes to town and Reese gets him to join the Rangers to convince him he isn't a jinx. Cletus is sent along with Reese, Chad and Joe to track down Linda Little Trees and her gang. Cletus ends up dislocating Chad's shoulder. The first town they arrive in has just had it's bank robbed by the Little Trees Gang. Chad sees a doctor for his shoulder while Joe immediately follows the outlaws trail before a rainstorm can wipe out the tracks. After the rain stops Joe takes off his wet shirt and is spotted by Linda Little Trees who is smitten with him. He is jumped by her gang and fights them off until Linda hits him on the head with a rock. Linda proposes to a tied-up Joe while Blue Dog, who wants Little Trees, threatens to kill him. Reese, Chad and Joe find the hideout and capture everyone but Linda Little Trees. Reese tricks Cletus into fighting by pretending to be wounded. Cletus overcomes is jinx fear, resigns from the Rangers and heads home to marry hi

Parmalee has only 3 rangers, Reese, Chad and Joe to keep order at a land rush. He reminds them that any rangers found showing any favoritism will face prison. While patrolling the area Chad meets lovely widow Alice Coverly and walks her back to her wagon. Reese gets into a discussion with her young brother Robert concerning western Indians versus real Indians that his British grandfather fought against. Reese goes to meet Robert's grandfather, Major Donaldson, and he and Chad have tea with the family. Parmalee breaks up the tea party and expresses his wishes to have an extra hour before the noon starting time to give those trying to file deeds illegally time to come in and be caught, Reese steals Commissioner Smoot's glasses, giving the Captain his extra hour. The rush begins and Major Donaldson is able to stake out the river land he wants but collapses after doing so. Chad puts on the Major's uniform and rides the Major's horse. He then has to pretend to be Major Donaldson to

Chad and Joe set Ranger Jess Moran up for a 4th of July boxing match with Calvary champion Percy Flower, the bet being a month's pay. The Pryor Gang is in the territory and Captain Parmalee is worried about them hitting the next silver mine shipment so he cancels the holiday for the rangers and assigns six of them to be on duty in town while he waits at the mine with the rest of the rangers. Chad, Joe and Jess are three of the six left in town. The Captain has agreed that one of them may leave guarding the silver bars if all of them agree it's necessary. Their problem will be getting straight-laced Ranger Gruber out of the way. Insurance man Wilson Jones helps them do this. Once Chad, Joe and Jess leave for the boxing match the Pryor Gang strikes and steals the silver. Jess twists his ankle just before the fight and Joe has to face Flower. Chad and Joe leave to chase the Pryors and capture them and recover the silver while Jess takes a swing at Flower and knocks him out.

Chad and Joe are planning to spend the weekend at the festival in San Gill but Captain Parmalee is leaving down to make a speech and puts them in charge of the office. Reese returns from a mission so Chad and Joe con him into being acting Captain but he immediately assigns them as stand-by for the weekend. Chad then alters a telegram to say a prison escapee is headed to San Gill so Reese sends them out to track him down. Once they arrive they discover that San Gill is where Parmalee is giving his speech and they immediately buy masks and serapes to disguise themselves. Reese eventually learns the outlaw was killed escaping and heads to San Gill after Chad and Joe. The three Rangers stumble onto an assassination plot that includes 6 Mexican government officials with Parmalee thrown in for good measure. They foil the attempt with fireworks and leave San Gill without being seen but having been heard by Parmalee. The Captain returns to Laredo and assigns them to seek out three Lared

Reese is tricked into volunteering for stable duty by Chad and Joe, who are then sent out to escort a payroll wagon. They are distracted from the wagon by a runaway team and the payroll wagon is taken by a group of renegade French soldiers who want to return to the power and status they enjoyed under Maximilian. Reese is sent to the French camp as a spy by Parmalee. He does all right but is suspected and when he leads the French out after another payroll wagon Chad and Joe are caught sneaking into their camp by a reserve force. Parmalee and the Rangers guarding the second payroll wagon are taken back to the French camp with Reese, where it is decided Reese is to be shot as a spy. Meanwhile, Chad and Joe break their bonds and are dressed as Mexican soldiers allied with the French. Reese notices they are two of the four men in the firing squad and the brawl starts. Back in Laredo Chad and Joe convince Reese he is going to receive a medal. He finds out there is no medal from Parma

Chad and Joe are sent to Guarded Wells to dispose of the Ramirez Gang. They do and a grateful town rewards them with food, drink and hotel rooms for free. Chad devises a way he and Joe can take advantage of this and wires the Captain that the Calico Kid is headed for town. Afterwords they learn that the real Calico Kid, a road agent 30 years earlier, is now Sam Lowell, an older man who has since become a model citizen. Not wanting to cause trouble for Sam, Chad and Joe work out a plan to put on a mock shoot-out during which the Calico Kid(Chad)is killed. Meanwhile, Sam's niece Lorrie sends a telegram to Parmalee asking for more men, stating they are doomed to destruction because of the Calico Kid's impending visit. Parmalee gets suspicious and rides to Guarded Wells with Reese. Town businessman Jacobus Carson, who originally hired Ramirez finds out about the Rangers Calico Kid plan and decides it would be a good time to rob the gold bullion from the bank. Chad and Joe stage the

Hired gun Jab Harlan orchestrates an escape for outlaw Brad Scanlon so he can trail him and clear an innocent man of Scanlon's crime. In the process he tangles with Reese, foiling a capture attempt which brings him to Parmalee's attention. Scanlon, helped by his wife Lilah, pretends to be dead and soon is as he is ambushed by his partners to keep him quiet. Reese and Jab indulge in a little cat and mouse with each other after Scanlon's death. Reese, not knowing Scanlon's dead, locks Jab up until he can capture the outlaw. Jab sends Reese in the wrong direction and then picks the lock. Jab and Lilah ride out to the Garrett ranch to catch the rest of the gang. Reese returns to town and finds a note at the undertakers from Jab telling him to come to the ranch. He does and gets there just in time to help Jab in a gunfight with the outlaws and recover the money. Despite their disagreements Jab and Reese part friends.

Two actors, Dudley and Newton, are being threatened with jail in Three Forks for their outstanding bills as their manager ran off with their receipts. Chad and Joe walk in and Chad rescues his old friend Dudley by telling the Sheriff the actors are wanted by the state, a higher priority, for the crime of framus. Chad and Joe are searching for the Pecos Kid, a notorious outlaw who has murdered 14 people. Dudley and Newton head for Whiskey Flats where Dudley passes Newton off as a minister to make some money as the town hasn't had a minister around for three months. They meet Miss Belleflower Ferne who wants Newton to marry her and her fiance Ben Conrad, who has been off making his fortune, actually he is the Pecos Kid. Under threat of death from Conrad Newton marries them. After the wedding he and Dudley dress as cowboys to stick-up the stage and halt the honeymoon. After finding out who the Pecos Kid is and his whereabouts Chad and Joe meet the stage at the same time Dudley and

New ranger Cotton Buckmeister is assigned by Judge Larkin to return a strongbox of official documents to Uvalde. Chad and Joe are to accompany him. Judge Ike Macallum ruthlessly rules Uvalde and has illegally brought charges against many people in order to blackmail them. So both Macallum victims and his henchmen are after the strongbox. During the journey Chad and Joe discover that Cotton also has an interest in the strongbox as he is ""wanted"" for breech of promise when he refused to marry Judge Macallum's sister Ada. A shootout occurs before Parmalee can arrive with Judge Larkin. Joe ends the gunfight by blowing the strongbox up with dynamite. All of the documents are destroyed except one - Cotton's. Court is held and Cotton is found guilty and Chad and Joe are appointed as supervisors.

When Reese, Chad and Joe capture the Morgan gang it includes 14-year-old Grey Smoke. Joe helps him out and gets him hired as a runner for the Rangers. Reese is assigned to trackdown cattle rustlers, leaving only Chad, Joe and Parmalee left in Laredo. They notice that gunslingers are drifting into down, nine in all. They discover cattleman Stan Greevy is responsible for hiring them as he is upset about the cattle rustling. Parmalee is more concerned about the gunslingers starting a range war. Greevy goes to the saloon and tries to pay them off but the outlaws have noticed the lack of rangers and have decided to rob the town. Parmalee, Chad and Joe wait outside the saloon and a gunfight ensues. Grey Smoke knocks out one gunslinger at Ranger Headquarters and jumps on Jug Herriot from a rooftop when he gets the drop on Joe and Chad.

Reese and Cotton run off two outlaws intent on forcing the inhabitants of San Diablo to divulge where the fabled treasure is hidden. Dandy Davis is wanted and Cotton heads back to Laredo with him but Dandy fills Cotton's head with stories of the treasure and how Reese will beat him to it. Reese has stayed behind as he knows the other outlaw Ben Slick will be back to raid the town and the San Diablo citizenry has asked him to teach them to defend themselves. Reese becomes general of their ""army"" and is even given a uniform. When the outlaws return Reese and the citizens defeat them and Reese and Cotton are able to return to Laredo.

Reese comes up with the perfect plan to catch Linda Littletrees, use Joe, who she is in love with, as bait. Parmalee says they might use the plan but then orders Reese, Chad and Joe to stay off the ""streets"". Reese and Joe are walking down an ""alley"" when they run into three escaping prisoners, two of Littletrees gang and William Tinney, a Ranger from Company A posing as an outlaw to gain the confidence of Littletree's gang. Reese captures Tinney and Joe tracks the two escaped outlaws Max Vander and Blue Dog. Reese is sent to San Antonio to fill in for Tinney, who is to continue his undercover role. The Captain and Chad spend their time waiting and worrying about Joe's safety. Joe is captured by Littletrees gang and locked in a room where she serenades him and has a wedding suit laid out for him. Tinney arrives as Joe is trying to escape and they capture the gang, including Linda who, to Joe's relief, tells him she won't love him anymore if he takes her to jail.

Reese is sent out to escort the Bordeaux sisters and gets his face slapped before finding out the sisters he's looking for are nuns. He escorts them to a settlement and makes them promise not to continue to Massacre Mission where priests were slaughtered some years earlier by hostile Comanches who are still on the warpath. The sisters telegraph Parmalee they have left for the mission anyway and the Captain sends Chad and Joe to protect them. They arrive to find the sisters smoking a peace pipe with the Comanches, who claim they have had nothing to do with the raids. Things are soon complicated by the arrival of outlaws who have treasure buried in the mission's sanctuary. They have been dressing like Comanches and committing the raids while using the mission as their hideout. Chad and Joe capture the gang with the help of the Comanches and each donates his share of the reward money to the mission.

Reese pretends to be a cattle buyer at Martha Tuforth's way station where outlaws Jack Hanks, Paco and Crazy John Holden are awaiting the arrival of Benny Murphy, who has their money to travel to Mexico with. Crazy John recognizes Reese as a ranger and they take him prisoner. Councilman Willburn and his wife Letty arrive shortly after and also find themselves hostages. Paco spends his time romancing Letty Willburn and Maryanne, Martha Tuforth's niece. Joe shows up disguised as a traveling salesman named Stanley. He is soon found out to be a ranger and joins Reese, tied to a chair. He tells Reese and the outlaws that Benny Murphy has been captured. Reese and Joe trick Crazy John into challenging Paco to draw and Paco kills him. Paco picks young Maryanne as the hostage to take with them along with the rangers when they leave. Martha breaks a glass and hands a broken piece to Joe who manages to cut through his ropes. A fist ensues and Reese and Joe capture the outlaws.

Reese has a toothache and is sent to retrieve the overdue school teacher from the train station at Gutter's Gulch. While there Reese brags that he is there to pick up the most important man ever to come to Laredo, which is overheard by recently released convict Anson Jones, a man Reese helped put behind bars. Pringle comes walking into the station as he got off the train when it made a brief stop and was left behind. Pringle has never ridden a horse so Reese has to time him to his mount. Jones and his gang try to kidnap Pringle unsuccessfully. The next day Reese's tooth is worse and he decides to take a detour to Doc Severnson's but walks into the Jones Gang's hideout in doing so. The Doc treats Jones bullet wound, inflicted by Reese. Reese, Doc Severnson and Pringle overcome the bandits but Severnson cannot pull Reese's tooth as his arm was broken in the fight against the outlaws. During the fight Reese is hit in the cheek. When he returns with Pringle the toothache is gone a