To overcome his timidity, Wall-nut volunteers himself to be the test subject of Torchwood’s teleportation machine. The machine sends Wall-nut back to the Triassic. In the Triassic primitive forest, Wall-nut scares off the Coelophysis and fights with the Herrerasaurus to rescue Alex the Eoraptor and his clan. He is regarded as “the number one warrior in the world”.