A US government germ warfare lab has had an accident. The first theory is that one of the germs has been released and killed several scientists. The big fear is that a more virulent strain, named The Satan Bug because all life can be killed off by it should it escape, may have been stolen.

On a flight to London, a note is found stating that there will be murders taking place on the airliner before it lands.

A group of young drifters kidnap wealthy businessman Roc Delmonico just for kicks. They keep him captive, demanding a ransom for his safe release. However there is no one - wife, Mafia associates or mother - willing to part with the $200,000 ransom. Demonico is dismayed that no one appears unduly concerned about his fate and joins forces with the kidnappers to plot his revenge, blackmailing his once nearest and dearest into parting with $3,000,000 in hush money.

On its maiden flight, the crew of America's first supersonic transport learns that it may not be able to land, due to an act of sabotage and a deadly flu onboard.

Sylvia West (Carroll Baker) may not be who she says she is. Her fiancé, the very well-to-do Frederick Summers (Peter Lawford), hires an investigator named Alan Maklin (George Maharis) to do some digging, and what he finds out about her life prior to becoming a writer is quite shocking. Will the newfound knowledge ruin the marriage? Gordon Douglas (Young at Heart) directs this drama, which is based on E.V. Cunningham's book.

A mercenary with a three-bladed sword rediscovers his royal heritage when he is recruited to help a princess foil a brutal tyrant and a powerful sorcerer's plans to conquer the land.