The success of Mary and Rhoda's vacation to Mexico depends on whether they're willing to help the owner of a Mexican restaurant sneak a package across the border.
An outlaw gang led by a vengeance-seeking gunman named Dan Whelan invades Dodge City during Marshal Dillon's absence and terrorizes the town. With all of Dodge under the heel of the gang, and Whelan threatening to kill the Marshal on sight, Miss Kitty boldly challenges Whelan to a game of poker with Matt Dillon's life as the stake.
Joe Mannix once again returns to his hometown in California's Central Valley, this time to assist Armenian attorney Leo Kolligan in defending Juan Esparza, a farmworker accused of murder.
