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 smuggling operation. Afraid, Jim decides to make a run for it, but someone close to him reveals themselves as a US Immigration agent and asks him to assist them in shutting down the smugglers for good.
Lloyd Bridges
as Jim Benson
Nancy Gates
as Sally Parker
Barton MacLane
as Karl Shanks
John Hoyt
as Steve Bodine
Harold Peary
as Juan Ortega
Nacho Galindo
as Alfonso
Robert Keys
as Reeser
Salvador Baguez
as Mexican Policeman
Jose Gonzales-Gonzales
as Wetback
Louis Jean Heydt
as Coast Guard Comdr. Randall
Roy Gordon
as Hoppy
Scott Douglas
as Immigration Officer
