Double Trouble

Two beefed-up twins (played by the Paul brothers, Peter and David, who have appeared in several programmers as The Barbarian Brothers) 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