Submarine Alert

Secret agent Harry Hannan suffers a mental breakdown when a botched mission in Mexico results in the death of his wife. He is sent to a mental asylum, after which he eventually returns to work. But, once again, he begins to doubt his sanity when he receives a bizarre death threat written in Hebrew. Not knowing which of his colleagues wants to kill him, Hannan teams up with pretty young college student Ellie Fabian to attempt to unravel the mystery.

Major Reisman is "volunteered" to lead another mission using convicted army soldiers, sentenced to either death or long prison terms. This time their mission is to kill a Nazi general who plans to assassinate Hitler.

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.

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.

Allied agents infiltrate the Nazi rocket complex at Peenemunde in order to obtain their secrets and sabotage the plant. The film alternates between German developments of the V-1 missile and V-2 rocket (with a German cast speaking their own language) and discovery by British Intelligence of the weapon.