The Secret of Two Oceans (Russian: Тайна двух океанов) is a 1956 Soviet science fiction adventure film directed by Konstantine Pipinashvili.
[4] In the Atlantic Ocean, the Soviet ship Arktika mysteriously sinks, followed by the explosion of the French vessel Victoire in the Pacific.
The crew of the top-secret Soviet submarine Pioneer, equipped with advanced technology and unparalleled capabilities, is tasked with uncovering the causes of these disasters.
Amidst the investigation, a foreign agent infiltrates the submarine by impersonating its chief engineer, planning to destroy it with a timed bomb.
Their pursuit leads to the discovery of an automated enemy military base launching magnetic torpedoes, which is ultimately neutralized, ensuring the submarine's survival and mission success.