Learning of a Nazi plot to attack Washington, D.C. with a deadly nerve gas, Major Wright leads twelve convicts on a suicide mission deep into occupied France to destroy the secret factory where the poison is made.

Upon graduation from high school eight teens take a seaplane trip, intending to celebrate on Keith's parents' private island. Stormy weather causes the plane to crash and they end up on a deserted isle. They find evidence of other visitors, and soon must fend for their lives against drug smugglers.

A renegade team of World War II soldiers. This time, one of the 12 is a woman and, with a Nazi spy within their midst, they're up against German wartime geniuses out to establish a Fourth Reich.

Based on a story by Vietnam veteran Paul Staples, the film concerns six American Green Berets, held for 17 years in a Vietnamese POW camp. They are finally released in secret, during a delicate trade-talk session between Vietnam and the United States. Captain Tom Watkins, the ex-prisoners' CO, begins to suspect that government-man Adam Roth, who is in charge of the debriefing, may be pursuing a hidden agenda that will result in the early deaths of Watkins and the five men under his command.

U.S. agents send a gymnastic martial artist to secure a missile-base site in the savage country of Parmistan.