Accidently gaining super powers from a machine in the Bat-Cave, Alfred wants to use his powers to aid the Dynamic Duo, but he only hinders, not helps, them against the Joker.; When a hammer in a museum is struck by a meteorite, the charge affects the hammer and its force transforms a museum curator into Thor, God of Thunder, who begins to commit crimes.; Professor Nichols has created an alternate history machine and Bruce uses the device to see what would have happened if his parents had not have been killed. As it turns out, a criminal adopts the Batman uniform for crime, so Bruce uses it to stop the felon and then adopts the costume for himself as the Batman!