The story begins with **Arya Stark** sneaking through King’s Landing before being teleported to **Gotham City**, where she encounters **The Joker** standing over Batman. A **UFO** appears, tied to the **Dyatlov Pass incident**, revealed by a mysterious janitor named **Jack**, who’s been tracking it since 1959. Arya learns from Jack and Batman that the UFO and a strange **symbol** connect Gotham, Westeros, and the **Night King** as “chaos agents.”
In Gotham’s City Hall and King’s Landing, the symbols awaken ancient evil, possessing leaders like the **Mayor** and **Cersei**. Arya and Batman fight in Gotham, while Jack battles in Westeros. Arya uses projection magic to guide Jack, who destroys the symbol, ending the possession. Arya returns to Braavos, and Jack becomes Gotham’s “Westeros liaison.”
The sequel sees Arya teaming with **Batman** and later **Spider-Man**, facing a **tentacled multiverse monster** with help from **Doctor Strange**. They save the multiverse, but Nick Fury warns of a bigger threat: **Thanos**.
Arya joins the **Avengers** and Batman against Thanos in a massive space battle above Gotham. Arya slays lieutenants while the heroes fight his army. Thanos nearly wins until a bomb is activated. **Iron Man sacrifices himself** by flying it into space, dying in the explosion.
At a Batcave memorial, the heroes mourn Tony Stark. Arya honors him with her sword, and Pepper Potts plays a final video message from Tony, who leaves personal words for each hero and gifts Spider-Man a suit upgrade. The story ends with his farewell.