Johnny Mack goes to work on "Ma" Curtis' ranch, to the disapproval of his friends, rancher Glenn Hadley and his sister Beth, who are at odds with her. Secretly, Ma's foreman Stoner is plotting with real estate man Ed Dutton to ruin her ranch and acquire it cheaply, with controlling water rights. Johnny stops henchman Dade in an attempt to dynamite the barn and Stoner, supposedly taking him to the sheriff, kills him. Johnny stops Glenn and Beth from tearing down a Curtis fence in order to get their cattle to water, but Glenn refuses to help even after Johnny explains he is helping Ma in order to find out who is behind the attacks on both ranches. Ma pretends to fire Johnny for saving Glenn from an ambush. As the outlaws attempt to rustle Ma's remaining cattle, Johnny, Alibi and Glenn join forces.

Jimmy and Cannonball escort Anne Lamont, the new school teacher, to Oreville, where she is molested by two outlaws. Marshal Blackjack Flint wounds Slade, who tells Derringer that lawman Flint is wanted by the law and, unknown to Anne, is also her father. Derringer than kills Slade and begins to blackmail Flint. Jimmy and Cannonball join the fray on the side of Flint, the reformed outlaw.

Johnny and Alibi try to straighten out a hostile young boy whose older brother was a notorious stagecoach bandit. When a gang of thieves try to strong-arm the kid into revealing the whereabouts of the stolen loot, Johnny and Alibi come to the rescue. There's a cursory romantic subplot involving heroine Mary and Barstow.

Johnny and Banty come in contact with a cattlemen's protective organization. Ostensibly an honest venture, the association is the front for an extortion racket, headed by a gent named Carson.

Jimmy Wakely a lawman goes undrrcover with a singing job at Dawson's saloon....

Three fellows band together to help a woman find her uncle's cache of gold in this western. All they have to help them is a tattered map that her uncle, a prisoner of war, created in camp. Unfortunately two badguys have the map and try to turn the three goodguys against the niece. They do not succeed and justice prevails.

A tramp puts on a police uniform and is still a hopeless slob.