Swamp Fire

"This adventure, set upon the mighty Mississippi, features two former Tarzans. One of them is a river-boat captain who was shell shocked in the war. The other is an evil trapper. The trouble is caused by their shared affection for a pretty young woman. Their rivalry climaxes as the two wrestle it out in an alligator hole. This was the only film in which one of the Tarzans (Johnny Weismuller) did not play a man from the jungle."