Ep 20. The Prehistoric Purge

On Reptilon, an unknown twin planet to Earth, dinosaurs never became extinct, but evolved into two races of highly intelligent space travelers - the noble Dinosaucers and the evil Tyrannos. Led by the heroic Allo, the mighty Thunder, and the bashful Steggie, the desperate Dinosaucers have arrived on Earth seeking new energy sources. The Tyrannos, however, share nothing and are determined to conquer Earth. It's up to four kids and the Dinosaucers to outmaneuver and outwit The Tyrannos.