A marine biologist teaches his dolphins to communicate in English but shady characters plan to kidnap the trained mammals for a more sinister purpose.
George C. Scott
Jake Terrell
Trish Van Devere
Maggie Terrell
Paul Sorvino
Curtis Mahoney
Fritz Weaver
Harold DeMilo
John Dehner
Wallingford
Severn Darden
Schwinn
Elizabeth Wilson
Mrs. Rome
William Roerick
Dunhill
