The invasion of Earth has begun. Lord Gorgo of Prehistoria has launched his asteroid storm of rock-ships, sending his warrior Menosaurs with a clear command — DESTROY ALL HUMANS!
Rex, Rion, and Tarrock hyper-drive to Madagascar on their quest for Grandidierite. Attacked by unknown ancient forces.
Rex will have to overcome one of the most significant losses of his life if he is to save the planet — and his best friend.
