In order to get an anti-matter paper bag, the Mellops must go to an alternate universe, one of anti-matter and retrieve one there. The Mellops convince Bernie Dump to go, because if any of the Mellops were to go to the anti-matter universe, and were to run into themselves there, the results would be cataclysmic. Bernie is very unlikely to be in the Mellop household in the other universe. Bernie does go, and finds the anti-matter universe is basically the same world, yet "reversed". Bill and Aunt Josey are there, wearing each other's clothes. Jane and Ralph are even there, wearing each other's clothes. Seems the Mellops are still searching for the Grand Baby in this universe. Bernie manages to get a paper bag and come back through the WOOP, however is forced to bring the Bill, Josey and Ralph from the other universe back with him.