Dr. Dometone

Ein Wissenschaftler wendet sich verzweifelt an die Thunder Cats: Ein Wesen von einem anderen Planeten möchte die Weltmeere auslaufen lassen, um die Felsen auf dem Meeresgrund für seine Energieversorgung zu verwenden.

In old scientist seeks the Thundercats to help him save the oceans of Third Earth. Long ago, a crack was made in the bottom of the ocean which caused the water to drain into the earth's core. Dr. Dometone created a plug which sealed the hole in the ocean, and saved Third Earth from destruction. Now, an evil miner, Scrape, has come to remove the plug and mine the rock that is found on the bottom of the ocean. The Thundercats join Dr. Dometone and his frog-like robot, Herkie, to save the planet from total destruction.

Una rana robot traga a Wilykit. Resulta que el robot es piloteado por el Dr. Dometome, un científico responsable de mantener el tapón en el océano que evita que el agua del mismo se drene hacia el centro de la Tierra.