Joyce Harper is an ex-Army nurse who enters police work with the L.A. Police Department, when her friend Ruby gets involved with a petty crook, Max Taylor refuses to listen to Joyce's warnings, and eventually marries the hoodlum. Joyce gets through the detailed trained required to become an L.A. policewoman, and she and her newly-assigned detective partner, Harvey Gates cleanup up a skid-row Bar-girl scheme.And she and Gates are told to get the goods on a narcotics gang ran by Richard Cott , and Ruby and Max Taylor reappear.

In 1940s Los Angeles, when womanizing composer Keith Vincent is found dead, the inquest concludes it was a suicide but police detective Joe Warne isn't so sure.

A stranded carnival dancer takes on a corrupt political boss when she marries into small-town society.

Four scientists and a newsman crash land on Mars and meet martians who act friendly.

The big national crime syndicate has moved into town, partnering up with local crime boss Nick Scanlon. McQuigg, the only honest police captain on the force, and his loyal patrolman, Johnson, take on the violent Nick.