Convicts on a chain gang sniff formaldehyde fumes to get high. They attempt a prison break and are shot down by the guards. After being buried, they rise from the dead, killing all in their path with shovels and hoes.

The staff and vacationers at a first-class resort on the island of Maui are beginning to mysteriously disappear. A biologist believes that an underwater earthquake has caused a giant and very hungry dormant prehistoric fish to be released from its slumber. The fish voraciously helps itself to a tourist buffet. Now it is open season for the local fishermen to find and kill the creature.

Two men, both hiding a deadly secret, are on a murderous rampage through the desert.

Two men, both hiding a deadly secret, are on a murderous rampage through the desert.

A peaceful ex-ninja's life shatters when his son's kidnapping forces him back into violence amid an American-Japanese criminal drug war.

Upon arriving to a small town, a drifter quickly gets into trouble with the local authorities — and the local women — after he robs a bank.

A spaceship is sent to Mars after an alien distress signal is picked up. They find one survivor, but when a crew member is found drained of blood it's evident they have rescued a bloodsucking monster. Uses footage from Encounter in Space (1963).