Former Coastguardsmen Jim Benson is about to lose his boat when a couple approaches him for a fishing charter. Jim departs just ahead of the Sherrif with drunken Shanks, and his companion Sally (Gates). Shanks takes off into a small Mexican village after a fight with Jim, stranding both Sally and him with no money. Two local men hear of Jim's plight, and offer him money to smuggle a batch of illegal aliens, called Wetbacks, into the U.S. He agrees but is blackmailed into continuing to run the sm...