Sea Devils 4 (2010 - 2016)

The plot continues to revolve around the experienced fighters of the secret unit, the real "sea devils," who never know defeat. This time, the elite team of combat swimmers is tasked with investigating even more complex crimes. Batya, Bagira, Bison, and Gnome will capture members of a criminal organization engaged in illegal smuggling of innovative weapons into Russia, defuse a ship's explosives, and rescue hostages. They will also capture a virtuoso sea otter that the divers use to commit robberies.