When a deadly Nitron ray strikes Earth, Flash Gordon and his friends travel to Mars to battle Ming the Merciless and his new ally Queen Azura.

After her father is killed by an outlaw, Dolores marries Peter. While they're at sea in the Arctic, Dolores meets the ship's captain, who is the man who killed her father. The captain causes an 'accident' to happen to Peter, so Dolores is all alone and defenceless as they drop anchor in a remote harbour.

A tough New York cop is determined to bring down a crook who has always managed to provide an alibi for the crimes he's been accused of, even though the detective knows he's guilty of committing them.

A scientist is turned into an ape man.

Escaping from a revolution, the King of a mythical Balkan country heads to the United States. Here he finds a friend in the form of dashing secret service agent Yorke Norray.

12 part movie serial where Clyde Beatty encounters obstacles and adventure on his way to rescue his damsel in distress.

Buck Rogers and Buddy Wade are in the middle of a trans-polar dirigible flight when they are caught in a blizzard and crash. Buddy then releases a special gas to keep them in suspended animation until a rescue party can arrive. However, an avalanche covers the craft and the two are in suspended animation for 500 years. When they are found, they awake to find out that the world has been taken over by the outlaw army of Killer Kane. Along with Lieutenant Wilma Deering, Buck and Buddy join in the fight to overthrow Kane and with the help of Prince Tallen of Saturn and his forces, they eventually do and Earth is free of Kane's grip.