Thing enters the microverse! After one of Reed's experiments goes awry, Ben Grimm is transported to the dimension of the very, very small. Only Scott Lang is available to answer the call of Ant-Man, shrinking down to particulate size to pull the Thing back to the other side!
We open at the Baxter Building, where Ben is once again being used as a guinea pig in one of Reed's experiments. When its over, Ben walks off to one side, and then very shortly begins shrinking until he disappears away to nothing. Reed and Johnny quickly mark the spot, and instantly diagnose that he's been transported into a microverse. They audibly wish that they were able to get ahold of Ant-Man, as the original Ant-Man had helped them with a similar problem before. A nearby ant (who apparently understands English) hears the conversation, and immediately broadcasts the call to all the ants in the area.
Out in the suburbs, the new Ant-Man (Scott Lang) is trying to get his daughter to clean her room when a small army of disturbed ants begins pouring in. Scott send his daughter off to a movie, then shrinks down and gets the message from the ants. He immmediately hurries to the Baxter Building, where he introduces himself, and offers to help. Reed points out that by applying repeated doses of the shrinking gas, Ant-Man should be able to shrink small enough to reach that microscopic world. Testing it on himself, Ant-Man quickly discovers that it works.
Arriving in the microworld (where they also speak English, apparently the universal language of both ants and microcitizens!), Ant-Man is immediately accosted by soldiers in semi-medieval armor who recognize him as being from the "macroverse." He gets away, and quickly finds Ben lounging on a couch, with beatiful women in attendance. Ben has been brought here by their queen, Pearla, and has agreed to serve as their champion in a combat against the leader of their enemies. Ant-Man is taken away to rest in a room of his own which does a nice imitation of a cell. He promptly escapes, of course, and while shrunken hitches a ride on one of the guards back to Queen Pearla, where we learn that she has drugged Ben into compliance. She intends to launch a surprise attack on her enemies while the contest of champions is going on.
As the drugged and sluggish Thing is armored up and sent into the gladiatorial ring, Ant-Man frantically rides to the rescue on a very alien-looking ant...