Bat Masterson roams the frontier and defends the innocent.

The owner of a casino in Paradise, Colo., refuses to pay the debts and taxes he owes, prompting Bat's appointment to the role of county tax assessor.

Bat faces a series of challenges as his crew builds a railroad in Colorado, including natural disasters, lost equipment and charges against Bat for a murder he didn't commit.

When Bat comes to the aid of a marshal friend in Dodge City to stop a power-hungry land baron named Silas Guild, he learns the marshal's intentions are less than noble.

Bat delays his plan to attend a poker game in order to protect an important gunpowder convoy on its way to Fort Stewart, but its armed escort has been decimated, and its wagon drivers appear suspicious.