 The Thornberrys are on the Russian peninsula of Kamchatka to film the Stellar Sea Eagle. Nigel and Marianne take off to film via helicopter while Eliza and Darwin explore. They meet up with a friendly group of Sea Otters and start playing together when an oil tanker comes into the area. To make matters worse Kip and Biedermann rupture the tanker and start an oil spill. Eliza takes it upon herself to save the otters. But when the oil catches fire who will save her?