Revenge of the Creature (a.k.a. Return of the Creature and Return of the Creature from the Black Lagoon) is the first of two Universal-International sequels to Creature from the Black Lagoon. It was the only 3D film released in 1955 and the only 3D sequel to a 3D film released during "the golden age of 3D". Produced by William Alland and directed by Jack Arnold (the director of the first Creature film), the film stars John Agar, Lori Nelson, John Bromfield and Nestor Paiva. The Creature was played by Tom Hennesy on land, and once again, portrayed by Ricou Browning underwater. It marked Clint Eastwood's film debut.
Revenge of the Creature premiered in Denver on March 23, 1955 and a "flat", non-3D sequel, The Creature Walks Among Us, followed in 1956. Revenge was released as a double feature with Cult of the Cobra.
Having previously survived being riddled with bullets, the Gill-man is captured and sent to the Ocean Harbor Oceanarium in Florida, where he is studied by animal psychologist Professor Clete Ferguson (John Agar) and ichthyology student Helen Dobson (Lori Nelson).
Helen and Clete quickly begin to fall in love, much to the chagrin of Joe Hayes (John Bromfield), the Gill-man's keeper. The Gill-man takes an instant liking to Helen, which severely hampers Clete's efforts to communicate with him. Ultimately, the Gill-man escapes from his tank, killing Joe in the process, and flees to the open ocean.
Unable to stop thinking about Helen, the Gill-man soon begins to stalk her and Clete, ultimately abducting her from a seaside restaurant where the two are at a party. Clete tries to give chase, but the Gill-man escapes to the water with his captive. Clete and police arrive just in time and when the creature surfaces, police shoot him as Clete saves Helen.