After training at the dolphin reconnaissance school, the dolphin Tristan was sent on an important mission to a secret military base of the USSR to obtain information about the Russians' new strategic weapon - a submarine that transforms into an airplane. After receiving a message that an unidentified object was discovered in Soviet territorial waters, moving towards a secret base, the Soviet command ordered to urgently send an experienced special agent, the dolphin Isolde, to intercept it.












24th April 1991
35 years ago
1 hour 9 minutes
Finishes at 5:29am

Movie data last updated 1 year ago on 30th June 2024 at 4:40am (BST). Ratings last updated 1 year ago on 8th April 2025 at 9:06am (BST). All film data including images and actor information is provided by the TMDb API, but is not endorsed or certified by TMDb. Film ratings provided by OMDb. IMDb, IMDb.COM, and the IMDb logo are trademarks of IMDb.com, Inc. or its affiliates. All product names, logos, trademarks and brands are property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, logos, and brands does not imply endorsement.