Part 4/8:
In a parallel storyline, the Guardians of the Galaxy respond to a distress signal from the Asgardian ship and discover Thor, who has narrowly escaped Thanos's grasp. Realizing the danger Thanos poses, Thor convinces Rocket and Groot to help him forge a weapon capable of defeating Thanos.
Back on Earth, the Avengers, alongside the Guardians, confront Thanos's forces, leading to various battles as they attempt to prevent him from collecting the Reality Stone and others. Tension rises as Gamora reveals her knowledge of a stone's location, illustrating her complex relationship with her twisted father.