When several robberies wherein no one sees the robber occurs, Clark is among the ones investigating it. He gets a package that has a pigeon and a note saying if he wants to know about the robberies send his reply. He then turns into Superman and follows the pigeon. But when he gets there he finds no one. So he leaves. Later another robbery occurs and he and Henderson are there to find what is going on. Clark thinks that they have the means to make themselves invisible. Henderson thinks that's far fetched. But the door at the store opens but no one is there. The man who was invisible goes back and meets with his boss and tells him that he overheard Kent saying that he thinks that the robber must have been invisible. That's when the leader decides to take care of him. He then captures Jimmy and Lois and sends him a note telling him to go and wait. He gets them to tell him how it works and how they knew Superman was coming. They try to get rid of him but of course he survives and uses ... Written by
Did You Know?
The box with the pigeon changes from one with a removable lid to one with a hinged lid. Also, in several scenes the pigeon is obviously a fake bird. See more