Cave of the Sharks (1978)

Name: Cave of the Sharks
Genre: Action, Adventure, Horror, Science Fiction
Released: 1978-06-28
Duration: 90 min
Cast: Andrés García, Janet Ågren, Arthur Kennedy, Pino Colizzi, Máximo Valverde

When Andres and his partner are hired to recover some valuables from an airplane that went down in the Bermuda Triangle, they face not only human treachery but also the mysterious powers of an underwater civilization.