A descendant of the Viking raiders, Eric Red, seizes both April and Professor Swenson's map to the underground volcanos in Scandinavia. He plans to tap into the molten energy, melt the polar ice cap and flood the world's coastal cities, making them easy prey for his wanna-be Vikings.

The Turtles and Splinter win a trip to Europe... but wind up riding in a crate with the Turtle Van. Once ashore they head for Paris. Meanwhile, Krang devises a giant electromagnet to pull the Technodrome free of its dinky Dimension X asteroid, using the Eiffel Tower in Paris as a giant antenna.