Mandrake and his assistant Lothar are working the cruise lines and make the acquaintance of Professor Houston who has developed a radium energy machine, which is much coveted by a masked Crime Lord known as "The Wasp".

A young girl journeys to Africa to find her father, an explorer who vanished in the jungle.

Robin of Loxley, otherwise known as Robin Hood, and his band of Merry Men protect England from the evil machinations of Prince John while King Richard the Lionheart is away fighting in the Crusades.

A gambling ring run out of the Mogul Taxi company is intent on fixing college football games. Football star Harold "Red" Grange is a target for the gamblers, whose thugs try to eliminate Grange from playing. Grange's buddy Buddy is himself vulnerable to blackmail, since he has broken team rules by marrying. The crooks use all their wiles to keep Grange and Buddy from leading their team to victory.

A nouveau riche hillbilly family moves to Beverly Hills and shakes up the privileged society with their hayseed ways.

A woman protects the beasts and the natives in a jungle in the Congo.

Captain Dan Tempest was an ex-pirate who received a pardon from the King and turned privateer after his stronghold of New Providence was taken over by Crown soldiers. Tempest and Lt. Beamish, the Crown-appointed deputy governor, were uneasy allies, fighting the Spanish privateers who were ravaging the Caribbean.

New York City policewoman Casey Jones' assignment to fight crime often entails her going undercover in some of the seediest and most dangerous parts of the city.