In 1946, the drifters Steve Martin (James Stewart) and his partner and friend Johnny Gambi (Dan Duryea) travel to Port Felicity completely broken to meet the investor Kermit MacDonald (Jay C. Flippen). Steve dreams on building an offshore drilling barge to explore oil in the Gulf of Mexico and MacDonald, who is an entrepreneur and also a dreamer, decides to finance them but gives a short schedule to find oil. They initially hire the fishing vessel of skipper Dominique Rigaud since the fishermen are having difficulties to catch shrimps. Steve and Johnny try to befriend the locals but when they use dynamite to locate oil, the population turns against them. Meanwhile Johnny dates the younger daughter of Dominique, Francesca, while her older sister Stella Rigaud fells attraction for Steve, but she rejects him since she is a wounded woman with a past. Steve, Johnny and their crew need to face the hostility of the locals, hurricane and sabotage from the locals.
—Claudio Carvalho, Rio de Janeiro, Brazil