Two beefed-up twins operating on opposing sides of the law, team up to stop a nefarious crook in this actioner. Peter Jade is a notoriously arrogant burglar who ends up with the key to an enormous underground cache of diamonds. David Jade is a cop who joins forces with Peter after greedy Philip Chamberlain, wanting the diamonds for himself, kills David's partner

When a large group of escaped convicts take Ike Slayton, a Vietnam veteran's wife hostage, Slayton enlists the help of his old army friend in a furious search to find her, while a hard-nosed National Guardsman leads a platoon of solders determined to kill or capture all the convicts, even if it means killing all the hostages in the crossfire.