 The Thornberrys are in Siberia along the banks of a river which feeds into Lake Baikal. Nigel and Marianne are there to film the Russian Lynx while the girls are forced to stay at the campsite and take inventory of their provisions. This really annoys Debbie who wants to go to the town of Bolshoi Goti and pick up a CD of her favorite Russian Band The Slovniks. Debbie and Eliza both shirk their responsibilities...Debbie and Donnie take off via raft to Bolshoi Goti and Eliza and Darwin tour a nearby beaver dam. Everyone gets in trouble with an unexpected storm erupts and the river begins to rise.