Preschool stop-frame animation about Lunar Jim who lives in Moonaluna, on the second-to-last moon of the Milky Way. Jim, Rover the robotic dog, space mechanic Ripple and space farmer Eco all enjoy extraterrestrial adventures. Yik Yak has arrived to share a treat from his home planet - Poppin' Pancakes - but before anyone can enjoy breakfast, Jim has to go to on a mission. The plug on a heat crater has popped off, and he has to replace it before the surface temperature of the moon gets too warm.