Also in the film is a brief appearance by boxing great Jake "The Raging Bull" LaMotta, playing a thug during the Everglades chase scene.
Miami police lieutenant Bart Scott informs his captain of his plans to retire.
His fiancée, Ann Easton, a widow whose husband was killed in the line of duty, refuses to marry Bart until he quits the force.
She becomes of grave concern to many in Miami with criminal ties, including attorney Raymond Sheridan, who is offering lobbyist Oliver Tubbs a million-dollar bribe to get Miami gambling legalized, and gangster Louis Ascot, who offers Lila sanctuary and takes her to Cuba.
Convinced that she has to help, Lila is taken to Scott's home in the Everglades to remain in hiding until the trial, but when Ascot comes after her, Lila and Ann end up armed and trying to hold off the gunmen until Scott can arrive with reinforcements.