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.
as Colonel Yellow / commander Morzhov (voice)
as Isolda Pavlova (voice)
as Tristan (voice)
as Henry / Greg (voice)
as Forwarder / helmsman (voice)
as Crab (voice)
as Well-fed ship captain / truck driver (voice)
as lieutenant colonel Red / muskrat (voice)
as John / Kremer / terrorist / captain / Morzhov / Yellow (voice)
as Vlas Afinogenovich Sukhoi / announcer (voice)
as Radio operator / watchman / parrot / news announcer (voice)
as Brigadier General / Yasha / Stukach / Instructor (voice)
as Isolda Pavlova / teacher / Anna-Mary (John's wife) (voice)
