Mr. T-Rex is accompanying the Thunderlizards on their mission, while Bill and Scooter start growing plants in their "garden of eatin'". Mr. T-Rex proves to be not very effective as a leader and gets caught by a huge venus flytrap.

The Thunderlizards, Mr. T-Rex, Nate the Dragon and El Gordo must work together to stop the Thuggasaurs from launching an attack.