Hank McHenry and Johnny Marshall work as power company linesmen. Hank is injured in an accident and subsequently promoted to foreman of the gang. Tensions start to show in the road crew as rivalry between Hank and Johnny increases.

Edited version of the 1939 Universal serial "Buck Rogers." A 20th Century pilot named Buck Rogers and his young friend Buddy Wade awake from 500 years in suspended animation to find that the world has been taken over by the outlaw army of Killer Kane.

A struggling young engineer, Bob Sanderson, refuses to marry the very-rich Edith Stuart until he can support her on his own earnings. He goes to work for her father as a messenger in the telegraph business, and, via his engineering skills, discovers a plot to kidnap Edith.

A chemical manufacturer is killed just after asking detective James Wong to help him. So detective Wong decides to investigate this as well as two subsequent murders.

There's something very odd about Romano, a notorious gangster serving time in the federal pen. For one thing, Romano doesn't sound much like himself. For another, he always seems to be hiding something. Detective Lee suspects that something's amiss, and he's probably right!

Steve Morgan kills a man in a holdup and hitches a ride to Los Angeles with Fergie. At a gas station, they pick up two women. Encountering a roadblock, Morgan takes over and persuades the party to spend the night at an unoccupied beach house. The police close in as one by one, the others learn that Morgan is a killer.

A gang of bank robbers holes up at a cowboy's ranch. One of the robbers turns out to be his brother. After the brother is killed by the gang, the cowboy tracks them across the desert.

Tom Evans is a young cowboy orphaned by a band of rustlers. Seeking revenge, Tom pretends to be a notorious ex-con and manages to worm his way into the gang in order to get the goods on the bunch.

Magazine writer Ann Mason infiltrates the United Defenders, a public service organization which is actually a front for racketeers. But a case of amnesia threatens to blow her cover.

A popular high school valedictorian and star athlete becomes a pariah when it's discovered that his father is a former bootlegger.