Desc: Beyond the Call of Duty: Directed by Cirio H. Santiago. With Jan-Michael Vincent, Eb Lottimer, Jillian McWhirter, Vic Trevino. While leading a maverick band of warriors behind enemy lines, a U.S. Army Commander is forced to lead a beautiful American journalist through the treacherous Mekong River Delta aboard a high speed gun boat while being pursued by a cunning Vietnamese enemy.