After the events of Captain America: Civil War, King T'Challa returns home to the reclusive, technologically advanced African nation of Wakanda to serve as his country's new leader. However, T'Challa soon finds that he is challenged for the throne from factions within his own country. When two foes conspire to destroy Wakanda, the hero known as Black Panther must team up with C.I.A. agent Everett K. Ross and members of the Dora Milaje, Wakandan special forces, to prevent Wakanda from being dragged into a world war.

With many people fearing the actions of super heroes, the government decides to push for the Hero Registration Act, a law that limits a hero's actions. This results in a division in The Avengers. Iron Man stands with this Act, claiming that their actions must be kept in check otherwise cities will continue to be destroyed, but Captain America feels that saving the world is daring enough and that they cannot rely on the government to protect the world. This escalates into an all-out war between Team Iron Man (Iron Man, Black Panther, Vision, Black Widow, War Machine, and Spiderman) and Team Captain America (Captain America, Bucky Barnes, Falcon, Sharon Carter, Scarlet Witch, Hawkeye, and Ant Man) while a new villain emerges.