In an argument over who lost the planetoid they were towing, Vic and Joey find themselves outside the S.S. Acid Rat looking and trying to determine what is hitting the outside of the ship. Vic is struck by a stray rock and Joey must fight pull Vic back inside. Once inside and the planetoid relocated, they discover their old friend, Sheriff B.T. Justice is on their trail. During the excitement, they passed through the sheriff's system and pursuit ensues. The crew decide to hide on the planetoid they're towing. Upon landing they discover its secret; it's hollow Not only is it hollow, but a civilization lives inside. Being pulled away from their home star, the planetoid is struggling to stay running and the citizens need the crew's help to survive. Unfortunately, Sheriff B.T. Justice isn't going to let them out of his grip this time