Ant-Man and the Wasp (2018): Cast, Plot, Villain and Ending Explained

The full story of Ant-Man and the Wasp is a chase for one person, Janet Van Dyne, with three groups after the same Quantum Realm technology: the Pym family, a ghostly thief and a black market dealer.

Scott Lang is nearly done with house arrest when he shares a link with Janet, lost in the Quantum Realm since 1987. Hope and Hank kidnap him to help with their quantum tunnel, while an ant stands in for him at home. When they try to buy a part they need, Sonny Burch double-crosses them. A masked, unstable woman called Ghost then steals Hank's lab, which has been shrunk to the size of a suitcase. Hank reluctantly asks his old partner Bill Foster for help finding it.

Ghost, whose real name is Ava Starr, captures the group. Her father was another of Hank's partners, and a lab accident killed him and left her phasing in and out of existence. Bill explains that Ava is dying and that she wants Janet's quantum energy to cure herself. Hank refuses because it would likely kill Janet, and the group escapes with the lab.

They reach Janet through the tunnel and learn that she can be reached soon, but they have only a couple of hours before the realm's instability would separate them for a long time. Burch then uses a truth serum on Scott's friends to find the group, and the FBI arrests Hank and Hope while Ava takes the lab again. Scott helps them break free, and Hank goes into the Quantum Realm to find Janet. A chase across San Francisco follows, and Scott and Hope stop Ava from draining Janet. Hank and Janet come back safely, and Janet willingly gives Ava enough energy to stabilize her for now. Scott gets home just in time to finish his house arrest, and Burch is arrested.

The ending of Ant-Man and the Wasp resolves the family story and then, in the mid-credits scene, ties it to the wider saga. In my opinion, that is the real answer to "what was the point of Ant-Man and the Wasp?"

On the surface, the point is simple: Hank and Janet return from the Quantum Realm, and the Pym family is reunited. Janet gives Ava a measure of her own energy so that Ava is stable for the time being, and Ava and Bill go into hiding. Scott finishes his house arrest as Woo, now suspicious, has to let him go, and Burch and his crew are arrested. It could be argued that the film treats Ghost as someone who needs help rather than someone who needs defeating, and that is my reading of why she is the most sympathetic figure in the story.

The film is also a bridge. The family plans to send Scott back into the Quantum Realm to gather more energy for Ava, and that plan is what ties the film to Avengers: Infinity War and, later, Avengers: Endgame, where Scott escapes the Quantum Realm and learns that years have passed outside. Paradoxically, a small, light caper ends up supplying one of the key ideas for the saga's biggest film.

So, did it happen before or after Infinity War? In chronological order, Ant-Man and the Wasp is 20th, right before Avengers: Infinity War at 21st, even though it was released afterward. That is also why the mid-credits scene lands during the Blip. My pick for new viewers is to watch it in release order and treat the ending as a pleasant shock rather than a spoiler.

Ant-Man and the Wasp has two post credit scenes: a mid-credits scene that matters to the saga and a post-credits scene that is a joke.

In the mid-credits scene, Hank, Hope and Janet prepare to send Scott into the Quantum Realm to collect energy that could keep Ava stable. Before he can be retrieved, the other three turn to dust, matching the Blip from Avengers: Infinity War.

In the post-credits scene, the ant that stood in for Scott during his house arrest plays a drum solo.