Swamp Fire (1946)

Buster Crabbe and Johnny Weissmuller battle it out in Cajun country Johnny a riverboat pilot on the Mississippi is seduced away from his fiance Carol Thurston by a rich outsider Virginia Grey whos nursed him back to health after a serious accident She owns a large piece of the swamp and has outlawed hunting on her property His rival Mike Crabbe is a trapper who harbors deep resentment for Johnny and his new wealthy friends When he feels Johnny is responsible for the hunting ban he resorts to destructive acts of vengeance