A dim-witted yet kind-hearted boxer, Terry Malloy, who failed to succeed unintentionally lures a man to his death after being tricked by a criminal called Johnny Friendly whose men pick of every man who has the courage to speak up to their crimes. As he works on the waterfronts that Friendly owns, he is sent to a church meeting run by a good preacher about how to deal with the problem and runs into the dead man’s sister. Slowly, he falls in love with her and begins to feel guilt about his crime.

In 1941 Hawaii, a private is cruelly punished for not boxing on his unit's team, while his captain's wife and second in command are falling in love.