Underwater Berets (1991)
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.
- Country : Soviet Union
- Genre : Animation
- Studio : Soyuzmultfilm
- Director : Vladimir Tarasov, Rasa Strautmane, Aleksandr Mazaev, Aleksandr Gorlenko, Elena Prorokova
- Cast : Vasiliy Livanov, Tatyana Dogileva, Boris Bystrov, Semyon Farada, Vsevolod Abdulov, Lyudmila Gnilova