Bank robber Big Ed Murphy is at his wit's end: someone keeps beating him to the loot — and that someone is Bret.

Bret is gired by a weathly texan to save her brother Mark from a conniving woman named Melanie. Posing as a Texas Colonel, Bret realizes that he's up against a master crook. With Mark's help and brother Bart's arrival as a weathly Easterner, they set up a scheme to catch the girl and almost outsmart themselves with their own cleverness.

Beau Maverick (played by James Garner), father of Bret and Bart announces that he is getting married. The Maverick boys discover that the marriage is a business arrangement, not a love commitment. The young girl, Josephine St. Cloud is being forced by her father to marry the older Beau Maverick. The brothers set out to sabotage the wedding plans, not knowing that Beau Maverick already had a plan.

Bret Maverick runs into a notorious bunch of bank robbers; Cole Younger, Billy The Kid, Sam Bass, Jesse James, Frank James, Jim Dalton, Black Bart, Ben Thompson and Belle Starr. The outlaws believe that Bret is the infamous Foxy Smith, a well known bad guy. When the outlaws discover Bret's true identity, they force him to do the robbery in Denver. Bret ends up in a mint of trouble.

Bart must either face two years in jail or chaperone three brides to their intendeds — the sons of wealthy Joe Wheelwright (Jim Backus).

The only person who can clear Bret of a robbery charge has been marked for death by the notorious gunfighter/gambler Doc Holliday.

When investors put the squeeze on railroad owner Paul Sutton, Bart tries to help by dealing with them directly — in a friendly card game.

It's shades of 12 Angry Men when Bret becomes the lone holdout for a not guilty verdict in a murder trial. He has to use a long shot card trick to convince the other jurors that the defendant might be innocent.

The heirs of millionaire General Eakins are being killed off one by one so why is Bret Maverick so worried? He's posing as one of the heirs and might be the next intended victim.

After they arrive in an Arizona town, Bret and Bart are mistaken for Wyatt Earp and Doc Holliday and end up preventing a bank robbery.

Sheriff Bret astounds himself as well as the townspeople by taming the trail herders who have been devastating the town, beats a gang of bank robbers at their own game, but has to summon the aid of brother Bart when his eye for a woman's beauty lands him in his own lockup.

Bart meets a comical sheriff (Edgar Buchanan) who is dead serious about killing him.

Samantha Crawford is a con artist employed by George Cross. Cross once lost $50,000 to Bret Maverick and is determined to get it back. Two riverboat owners staked Maverick $5,000 which he promptly loses to Samantha. Samantha claims Cross is her father and needs the money to get out of jail. Maverick forms a partnership with Samantha and purchases gambling equipment in a scheme to put Joe Riggs, a crooked game room owner, out of business. Samantha and Cross doublecross Maverick by selling the equipment to Riggs.

Bret is happy to escort a lovely widow to the bank with a large sum of cash - until he learns the money is counterfeit.

Bart has trouble retrieving his poker winnings from thieves. But help is on the way — from the local Ladies Aid Society.

On their way to Denver, Beau and Bart Maverick pick up $6,500 in a poker game at Stop Gap. They decide to wire the money to Denver through the Hulett Telegraph Company. They discover the company is a fake and that the telegraph line leads to a cave two miles away where the crooks stash the customers' money and send phony messages in return. The cousins devise a scheme to recover the money and put the company out of business.

Bret Maverick takes down a money-hungry gambler in the town of Echo Springs. He befriends an old drunk, who turns out to be a successful judge. Maverick strikes a deal with the gambler, Phineas King, to merge the ""silver lady"" mine with ""the new hope"" mine.

Bret and Dandy Jim Buckley bet heavily on a boxing match but when their fighter withdraws it's up to Bret himself to step into the squared circle.

Bart Maverick is in search of a thief who stole his money but gets sidetracked into accompanying a young woman searching for her missing husband into forbidden Sioux territory.

When George Henry Arnett hears that Bret Maverick is in town to collect his money, Arnett (Adam West) starts a ""top gun"" rumor about Bret. After he creates a smoke screen, Arnett creeps out of town. Maverick is idolized by the town youngsters, sought after available women and hunted by the town bounty hunter. Bret Maverick is the talk of the town.

A $10,000 temptation puts Bret unwittingly in the middle of a fantastic smuggling scheme.

Inheriting a stagecoach line from Uncle Micah is only the beginning of financial problems for the Maverick brothers.

Bart just made the deal of a lifetime: he blindly purchased a wagonload of merchandise — including a bound and gagged Indian girl.

Bart is closer to tears than laughter when he is forced to battle the funniest and fastest gun in the West.

Bret tries to prove the innocence of a man serving a life sentence. But there's someone who wants the prisoner to stay where he is.