Scripted by Jack Nicholson and the director, Monte Hellman, this film precedes their later collaborations on Ride In The Whirlwind and The Shooting.

Joe Gaines (Dewey Martin), becomes entangled in a dangerous web of deceit when a satchel of jewels enters his life. After meeting the outgoing Jay Wickham (Nicholson) in a casino, Joe beds a beautiful woman, only to find her murdered when he gets out of the shower. Jumping aboard a small plane headed for the Phillipines, Joe is shocked to discover that Wickham has tracked him down. Another passenger, Lorgren (Vic Diaz), and his gorgeous girlfriend, Destiny Cooper (Fay Spain), appear to have ulterior motives for getting close to Joe. When the airplane crashes in the jungle, leaving only a few survivors, everyone's true colours shine through. A battle ensues, leading to a final duel between Joe and Wickham, deciding once and for all who - if anyone - will keep the diamonds for themselves...