Paladin (Richard Boone) travels to Mexico to find a gunman who killed 21 men and ran off with a rancher's daughter.
Jim Hardie, disguised as a reporter infiltrates the Jesse James gang who are suspected of a robbery in which a Wells Fargo agent was killed.
Thad Milburn is fed up with being mistreated and cheated by people in Dodge City causing him to wound two people and take refuge in a warehouse. Earp decides to investigate what happened before he and his deputies take any rash action.
Two half-brothers decide to try a new scheme by themselves to rob the Dodge City State National Bank. However, a new alarm bell in the bank and a wise Earp expecting them pose problems for the men successfully getting away.
A bank robbery in Dodge City is foiled by the citizens while Earp is away. Earp knows the gang is lead by the sister of one of the wounded robbers. Earp arrests the sister but she turns the tables on Earp accusing him of attacking her.
