The discovery of Adamantium within the Celestial Island - a colossal sculptural artifact first introduced in Eternals - ignites a global arms race. US President Thaddeus Ross (Harrison Ford) spearheads a treaty to regulate its control. However, when a stolen fragment of Adamantium surfaces in the US, followed by an assassination attempt on world leaders at the treaty conference, Ross finds himself at the centre of suspicion, and the fragile alliance teeters on the brink of collapse. Captain America (Anthony Mackie) arrives at the scene with a new Falcon, Joaquin Torres (Danny Ramirez), to unco....