Planet King Guu 1: King Guu

Ben is on the run from his arch-enemy Monty, when he suddenly falls through a mysterious hole in the ground and discovers a hidden forest. King Guu, a girl with a stately beard, a gigantic tree house and a wombat named Herbert, rules here. No wonder Monty and his gang want to destroy this paradise. But Ben and Guu are well prepared, with cow-pooh-packs, skunk-bangers and Guu's most ingenious invention: the wombat!