"All the World Wars at Once!"
Reed test his theory that he is loosing elasticity with a trip through the Danger Room. But he holds his findings from the rest of the team while they try to figure out what happened to Johnny and Ben. Johnny returns to the 5th Dimension but is attacked by the natives thinking he is an androne. He is saved by Phineas and his daughter and told that the 5th Dimension has been under attack by andrones from an alternate Earth. Johnny joins the battle to save the 5th Dimension. Meanwhile, Ben is on that alternate Earth that is being attacked by strange monsters created by that Earth's Reed Richards. Ben is taken into custody, since he looks like Reed. Back on Earth, Reed figures out what's going on as the 5th Dimension declares war on both Earths.