After successfully preventing the Mars Station from being captured by pirates, John and his back-up, Katy Walls, are ordered back to the Moon. It seems two scientists stationed at one of the outposts there have disappeared. As John and Katy search without much success at first, they meet Adam, a young boy who walks on the moon without a spacesuit! Now how can that be? As they follow Adam back to his home world, against Professor Heidrickâs direct command not to, they become entangled in a scuffle with some beings from yet a third planet. In a sometimes-hilarious battle, they try to overcome the strangers. But working with strange beings on a strange planet, will they be successful? Will they be able to return to the moon if they are? Will Professor Heidrick carry out his threat to jail them and throw away the key if they do return?
