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.

The four Rangers mission is to find out who has been raiding settlements, kidnapping skilled workers and killing the rest. Reese and Joe track the raiders for three days and are captured. Joe eventually becomes a gladiator second class and Reese a slave in the camp of Hannibal Rex, a would-be Roman-type emperor in Texas. Chad and Erik pose as a sculptor and an architect and are also abducted by Hannibal's henchmen. Hannibal's favorite wife Celeste invites Erik to her tent but he suspects a trap. Chad goes instead and is punished by being hung on a slowly heated metal pole that is suspended over a pit of poisonous snakes. Joe, Reese and Erik free Chad and they succesfully battle Hannibal Rex and his henchman. Erik ends up having a picnic with Celeste who he has handcuffed himself to.

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

Murders begin occurring the day Shamus McCloud arrives in town. At first the murder of Doctor Ingram's dog seems to be possible revenge by Shamus McCloud for the death of his brother at the doctor's hands. More murders take place and McCloud is blamed, the believed reason being he is taking revenge on the town too. The Rangers investigate other people who came to town the same day, such as Prof. Smythe and his traveling Museum of Horrors. One of the victims is a gambler that Joe owed money to so even he falls under suspicion. Shamus finally asks to be put in jail so he'll be cleared when the next murder happens. While he is playing cards with Chad and Joe in the jail the three of them figure out the killer is someone who can't tolerate high-pitched noise.

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.

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

Clay Morgan runs a reverend out of Black River because he feels the reverend's presence will eventually lead to local law enforcement. Joe keeps the reverend from being murdered by one of Morgan's thugs. It turns out that the reverend was Parmalee's first arrest as a young ranger. Parmalee sends Eric and Chad to Black River disguised as ministers. The three rangers work with the town's church committee to get a church established, the reverend back and Black River out of Morgan's control.

Pro-Juarez rebel Juan Morales is taken from Ranger protection by the LeBec gang across the border to a French prison to await execution as an enemy of Emperor Maxmillian. The four rangers are sent to retrieve him and gain access to the prison with the help of cantina owner and Juarez sympathizer Carmella Alveras, who is also an old girlfriend of Erik's. Erik devises a plan to rescue Morales ""after the execution"". Reese, Chad and Joe sneak into the firing squad barracks and load the rifles with blanks while Erik does the same for the captain's pistol which will be used for the coup de grace, the final shot to the head. The pistol is fired at Erik when he's leaving the fort so he, Chad and Joe intercept soldiers sent from Maxmillian and impersonate them with Reese reluctantly posing as Morales' wife. Erik poses as a major and uses his ""rank"" to fire the coup de grace himself.

The rangers are investigating a series of bank robberies. They discover the robbers come in through the ceiling. Erik suspects a circus and joins it as a magician, romancing the lovely lady tiger tamer, Eve. Tolliver, the circus owner, uses an air balloon to transfer the money after the robbery. He then cases out the next bank to be robbed dressed as a wealthy gentleman and deposits their stolen funds into it. He also uses the circus performers, strongman, tightrope walker and acrobats, to carry off the robberies. Eve has second thoughts when she thinks Tolliver has murdered Erik. Erik figures things out and with the help of Joe and Eve, who saves his life, foils the last bank robbery. Erik takes Eve up in the balloon and drops a note to Chad and Reese stating all is well and, much to Chad's frustration, Eve sends her love.

Joe, Erik and Cotton Buckmeister meet printer Lemuel Beamish, who asks to travel with them the next day. Unknown to the rangers Beamish has three men following him. Beamish's cinch breaks and Cotton stays behind with him, spending the night at an abandoned fort. They are attacked and Beamish is killed. Before he dies he recites a nursery rhyme Cotton is to repeat to Beamish's niece when he delivers his belongings to her, which include a satchel of money. The money turns out to be counterfeit and the rangers suspect that the three men and possibly the niece are after something else, such as engraving plates. The nursery rhyme may be a clue to where they are hidden but Cotton can't remember how it goes!

Lance Mabry joined a gang of war buddies for a train robbery and is now on the run with the money. He hides out at his farm and learns his young daughter Missy is there, having run away from boarding school. Reese, Chad and Joe arrive and are all slightly injured or kept at bay by Missy, who thinks they are the outlaw gang after her father. The Rangers are soon won over by Missy and they try to work out a way to avoid her finding out her dad is a train robber. They concoct a story of how they killed the outlaw gang and recovered the stolen loot. During the telling of this story to Captain Parmalee it is also conveyed that Mabry died fighting the outlaw gang. Unknown to the Rangers Mabry has already turned himself in to Parmalee, knowing it was best for himself and Missy. Reese, Chad and Joe receive a week of stable duty.

Grover's Bend storekeeper Mr. Tinker telegraphs Parmalee that cattleman Ed Garmes is bullying a sheep raising religious group called the Peaceables, who refuse to defend themselves because of their beliefs. Chad, Joe and Reese are sent to protect them. Reese hurt his back in Laredo and is in need of bed rest by the time they reach Ernest Snilly's sheep ranch. Chad and Joe head into Grover's Bend while Reese is cared for by Snilly's daughter Delia who does her best to convert Reese to their non-violent ways. A pacified Reese is roughed up by Ace Brady and the other toughs Garmes has hired while Chad and Joe set to jailing half the gang, arresting one or two at a time. Ace and the gang ambush Chad and Joe who take refuge in the jail. Chad tries to snap Reese out of his new beliefs by convincing Garmes that Delia loves him but wants him to be more forceful. He attempts this at the Snilly house where Delia cracks him on the head with a frying pan when he touches her. Reese comes to

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

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 ""saves"" three con artists from robbers and Don Miguel's ""dying"" wish is that Reese have 10% of his estate. It turns out the estate is the entire city of Laredo and the surrounding county, which Don Carlos de Laredo and his ""sister"" Dona Dolores are claiming the right to with a recently discovered Mexican land grant. Don Carlos makes arrangements for the former landowners to pay to keep their land while Reese spends time with Dona Dolores. His new role as a gentleman prompts Chad and Joe to put Reese through a Pollyanna transformation. Captain Parmalee suspects something is wrong and secretly ""borrows"" the land grant to have it checked out.

Reese and Erik attempt to deliver a mine payroll but are ambushed by the Sweet Gang, a hillbilly gang lead by Ma Sweet, and have to retreat. Parmalee, Chad and Joe ride to join them, meanwhile Erik tries to find another route to the mine but is taken prisoner by the Sweets, becoming a romantic interest for Billie Lou Sweet. The Rangers use the local sick wagon to transfer the mine payroll. They are attacked by the Sweets who, holding Erik as prisoner, force them to disarm and surrender the payroll. The Rangers use psychology and then force to capture them. Reese, Chad and Joe catch the measles due to being around or in the sick wagon.

Reese is caught in a downpour and heads to Small Chance for cover. He finds a nearly deserted town that seems susceptible to earthquakes and murder that the three remaining inhabitants, Kay Comstock, Sgt. Durgom and Old Charlie, say are caused by poltergeists. After another murder and two near fatal accidents Reese finds out there is a gold mine underneath Small Chance. He is held prisoner in the mine with a fourth Small Chance inhabitant Monte, a huge, simple man who works the mine. Erik rides in looking for Reese, which forces Kay and Durgom's hand.

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.

Chief Tohpay, whose land has been stolen by the white man, is on the warpath. With modern military training provided by former army specialist John Garth they have taken a fort and captured Winchester rifles and a Gattling gun. Garth has been promised the hand of Tohpay's beautiful daughter Lohray as a reward, although she is unwilling to marry Garth. Reese and Chad are sent to investigate a town controlled by a crooked sheriff and armed Indian guards while Joe and Erik search for Tohpay's camp. All four are captured but break loose. Erik discovers the secret of the stone fire-breathing idol Tohpay has been using to convince his people that the God's support him. Erik uses this to discredit Tohpay as the other rangers try to capture the Gattling gun.

Emerson Whitby III is a millionaire who travels to Laredo to participate in a marathon poker game with other millionaires including the beautiful Sabrina Lane. The Rangers stop an attempt to kidnap Whitby from the stage and discover Whitby and Reese have the same sounding voice. Since the kidnappers didn't see Whitby but only heard his voice the Rangers devise a plan to substitute Reese for Whitby in the poker game. The plan is to let Reese be kidnapped and then follow the gang to their hideout. Reese is captured but puts up too good a fight and Joe, hiding in a bush, has to knock Reese out with his gun butt so the kidnappers can subdue him. The switch is discovered and the real Whitby is spirited away in a trunk. The Rangers rescue him and catch the ringleader when the gang attempts to get the ransom money.

Joe saves Jem Sing from a traitor of General Ti who has stolen her and Ti's opium. Jem Sing tells Joe, ""Sterling One, you save Jem Sing's life, now life is yours forever."" Joe becomes frustrated with her customs and her calling him master. General Ti wants to make Jem Sing his wife and is also trying to close an opium deal with the syndicate. He kidnaps Jem Sing and Joe from the Ranger barracks, wounding Parmalee in the process. The Captain grants Chad and Erik ""vacation"" to go after Ti in Mexico. They intercept the syndicate representatives and impersonate them. They join with Joe to escape Ti's cell and do battle with Ti and his troops as they attempt to foil the syndicate deal and rescue Jem Sing.

Chad, Joe and Cotton Buckmeister are offered a $50 bonus to transport a bottle of Nitro Glycerin and the Professor who invented it to an army fort. A quick-change artist keeps trying to steal the Nitro and eventually succeeds. The Rangers manage to capture him and get the Nitro back.

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.

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

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