Black Manta seeks revenge on Aquaman for his father's death. Wielding the Black Trident's power, he becomes a formidable foe. To defend Atlantis, Aquaman forges an alliance with his imprisoned brother. They must protect the kingdom.
Still reeling from the loss of Gamora, Peter Quill rallies his team to defend the universe and one of their own - a mission that could mean the end of the Guardians if not successful.
Miles Morales catapults across the multiverse, where he encounters a team of Spider-People charged with protecting its very existence. When the heroes clash on how to handle a new threat, Miles must redefine what it means to be a hero.