The sheriff of a small western town is having trouble with an outlaw named Rowdy Dowdy. Rowdy beats up the sheriff and the sheriff raises the reward for his capture and telegraphs Atom Ant for help. Rowdy asks the sheriff who he telegraph and the sheriff tells him. Rowdy laughs at the sheriff and leaves.
Atom Ant shows up and reassures the sheriff that he will handle Rowdy. Atom Ant foils Rowdy's attempt to hold up the bank. Then Rowdy tries to smash Atom Ant with a boulder, but Atom Ant picks up the boulder and smashes Rowdy.
Rowdy goes to the saloon and drinks some milk to refresh himself and goes out and challenges Atom Ant. The townspeople cannot see Atom Ant and they think Rowdy is beating up on himself. Rowdy finally surrenders and Atom Ant takes him to jail.