Dangerous climate changes are ravaging Earth and the U.S. government requests an investigation by masked super-scientist Commando Cody. He discovers that the disasters are being caused by space-alien forces from unknown planetary origins.

A mysterious plague, the Purple Death, ravages the earth. Dr. Zarkov, investigating in his spaceship, finds a ship from planet Mongo seeding the atmosphere with dust. Sure enough, Ming the Merciless is up to his old tricks. So it's back to Mongo for Flash, Dale, and Zarkov.

A story about a girl from the sticks doing drudge work at a hotel and dreaming of a better life.

An evil scientist known as "Mr. M." uses a drug he has developed called "hypnotreme" to help steal submarine equipment. Federal agent Grant Farrell is dispatched to find the mysterious villain and stop his nefarious plans.

A mad doctor named Zanoff uses a drug to bring himself back from the dead after his execution in prison. Dick Tracy sets out to capture Zanoff before he can put his criminal gang back together again.

Judy and her grandpa run a trolley between a train depot and a ghost town in Nevada, near the California border. Three spies intent of tracking down an atomic missile gone astray arrive. When the trolley breaks down, Judy and Grandpa unwittingly install the engine from the nearby crashed missile.

Edited version of the 1940 Universal serial "Flash Gordon Conquers the Universe", released in a syndication package to TV in 1966.

Notorious outlaw Clay Anderson and gang rob the town bank and flee in separate directions. Riding hard, Clay's horse goes lame and he is forced to pull-up at a nearby farm. He soon discovers that the place belongs to local preacher Hollis Jarret, his new wife, and a son from a previous marriage. Clay, posing as a weary traveler, tries to insinuate himself into a secure hideout, but the reverend isn't fooled. He agrees to allow Clay to remain at the farm for a few days, but his motive isn't the preservation of his family's safety. Hollis reasons that, with time, patience and a lot of faith, he can convince the outlaw to turn over a new leaf. But Clay's criminal tendencies may run deeper than the preacher had imagined

Notorious outlaw Clay Anderson and gang rob the town bank and flee in separate directions. Riding hard, Clay's horse goes lame and he is forced to pull-up at a nearby farm. He soon discovers that the place belongs to local preacher Hollis Jarret, his new wife, and a son from a previous marriage. Clay, posing as a weary traveler, tries to insinuate himself into a secure hideout, but the reverend isn't fooled. He agrees to allow Clay to remain at the farm for a few days, but his motive isn't the preservation of his family's safety. Hollis reasons that, with time, patience and a lot of faith, he can convince the outlaw to turn over a new leaf. But Clay's criminal tendencies may run deeper than the preacher had imagined

Dick Tracy's foe for this serial is the crime boss and Masked Mystery Villain The Spider/The Lame One and his Spider Ring. In the process of various crimes, including using his Flying wing and sound weapon to destroy the Bay Bridge in San Francisco and stealing an experimental "Speed Plane", the Spider captures Dick Tracy's brother, Gordon. The Spider's minion, Dr. Moloch, performs a brain operation on Gordon Tracy to turn him evil, making him secretly part of the Spider Ring and so turning brother against brother.