Ruff, Reddy and Dr. Gizmo are met by a cave boy called Ubble-Ubble, who knocks out the T-Rex. Killer and Diller kidnap Ubble-Ubble. Ubble-Ubble bats Killer and Diller but they recapture him and ...

Ruff and Reddy discover a scientist, Professor Gizmo, in the dome of the Big Thinker. Gizmo tells how he blasted off in his homemade rocket and was taken prisoner in Muni-Mula. Reddy, having given ...