A Visitor from the Country of the Future

After being beaten to a pulp by Gian once again, Nobita asks Doraemon for his air pistol and plans to get revenge on Gian. However, for some reason, Gian has an air cannon, and Nobita ends up getting beaten back... After hearing the story from Nobita, Doraemon says that it must be some kind of mistake, as the air cannon only exists in the future, but this time he brings out his invisibility cloak. Nobita immediately puts on the invisibility cloak and goes to look for Gian, but as he walks he goes into a fog and bumps into what looks like an invisible wall. Nobita accidentally falls and the invisibility cloak comes off. At the same time, Nobita suddenly finds himself shrunk and trapped inside something that looks like a goldfish bowl! To his surprise, Gian picks him up...! Gian has used his secret gadget, the universal trap. Not only that, Gian also takes out another secret gadget from his pocket...!?