Bat responds to cry for help when a friend's small gambling house is threatened by rival casino owned by Big Keel Roberts. Roberts suggest that he and Bat play one hand of poker, with the winner gaining ownership of both casinos.

A vicious night rider reacts with murderous intent when he thinks Bat is flirting with his girl, pretty saloon girl Molly Doyle. Everyone tells Bat to leave town to save his life but Bat not wanting to be told what to do decides to stay.

Bat is hired by John Conant to discover if his daughter's fiancée cheats at cards. Bat discovers the crooked card sharp is really a powerful cattle baron who plans to kill Bat before he can tell anyone else.

A gang of river pirates take over the paddle-wheeler Dakota Queen and relieve the passengers of jewels and furs and Bat of $10,000. Bat uses a barrel of rare cheeses to trap the gang's gluttonous leader to recover the items.

Bat agrees to escort a murder suspect to trial, but he escapes with the help of his girl friend. Bat decides to take the woman to Fort Smith to stand trial for jail-breaking with the hope that he might capture the suspect along the way.

On his way to build a gambling casino in a boomtown, Bat is confronted by an inept robber - an Austrian nobleman who has been cheated at a crooked saloonkeeper's roulette table who is in love with a dance hall girl.

During a high stakes poker game Bat agrees to accept one-half of a lottery ticket as payment for a gambling IOU. His trouble starts when his ticket is declared the winner but the other owner is found dead without the half of the ticket.

Bat is kidnapped and asked to become the bank president in a town consisting entirely of former outlaws, because the former crooks don't trust each other. He is to keep the money safe while a blonde beauty handles the books.

Two Dutch treasure hunters search for a legendary Spanish galleon that sank in the Colorado River. Bat attempts to rescue the unwary pair from a desert sandstorm and two crooks who are out to steal the jewels if the ship is found.

After Bat rescues an old gypsy from a brutal rancher, the old man offers him many valuable gifts, including a beautiful girl. When Bat learns she is not a gypsy but found near a wagon train massacred by Indians, he decides to take her.

When Bat buys a derby hat in a small Missouri town he is aghast at the price. Learning that a freight line owner forces shopkeepers to use only his line to ship their supplies from the river, Bat decides to break his monopoly.

Bat is convinced that a painting purchased by a beautiful friend is a forgery since the original burned. He tries to prove the painting is fake but finds himself on the wrong side of a bet and framed for the murder of a renown art critic.

When threaten by anti-suffrage leaders, Bat decides to help a group of women campaigning for women's suffrage in Wyoming fight a cabal of wealthy ranchers who wish to prevent women from getting the vote fearing homesteaders.

Bat and his partners fleece an unscrupulous businessman out of half the profits in a gold mine. He exacts revenge by buying up the timber they need to shore up the mine walls, then tries to kill the men with an explosion in the mine.

Bat's friend, Ellie Winters, is hired by promoters selling shares in their diamond mine. Although Ellie is convinced that the mine is legitimate, Bat investigates and discovers the owners are salting the mine with high-grade quartz.

Bat spots Lisa Truex in Deadwood who stole $2000 from him. Bat wants to collect but Lisa's boyfriend runs the town. She sells Bat an acre of land she owns that appears to be worthless but Bat finds a way to profit from it if he lives.

Three cowboys trick a magician into helping them rob a bank by taking Bat Masterson's gun "as a joke" before he enters the bank. Bat and the magician team up to recover the loot through the aid of another conjurer's stunt.