Agent Sam Casey is in a satellite explosion and the radiation turns him invisible. He gets a watch that keeps him visible, and he uses it to switch from visible to invisible. He is assigned to transport a chemical called Tripolydine, which is purported to be the most efficient fuel; when the cover is blown on that and he uncovers and stops the Tripolydine fraud, he must then stop a terrorist from blowing up race cars.

Philo takes part in a bare knuckle fight – as he does – to make more money than he can earn from his car repair business. He decides to retire, but when the Mafia come along and arrange another fight, he's pushed into it. A motorcycle gang and an orangutan called Clyde all add to the 'fun'.

A Boston boy escapes from spies and survives in the wild with tricks from his mountain-man father.

A talking pig named Gordy becomes involved in a quest to save his family from the slaughterhouse.

A mysterious and invisible alien presence has landed in rural Texas and has started turning the nearby townspeople into white-faced, bloodthirsty killers. As the local authorities begin to investigate the strange and violent goings on, a photographer and his girlfriend find themselves trapped in the midst of an unexpected rural bloodbath, which seeks to turn them into another pair of bloodsuckers from outer space...

A disc jockey encounters a UFO; the experience leaves him with psychic powers.