In Pixels, some aliens get a strange signal from planet Earth. This signal comes from arcade machines, video game machines very fashionable in the eighties and the first half of the nineties.
Many of these games were very violent, so the aliens think the Earthlings are declaring war. That’s why they decide to attack the Earth and to do so they manufacture the same machines they see in video games.
Will Cooper is the politician who has to deal with the problem and seek a solution. To end the alien invasion, he called Sam, his childhood friend, who was the king of the arcade machines.
Sam, along with other players, puts himself in the control of the arcade machines to handle the war machines they have created in order to deal with the aliens. They will be joined by Violet, an army officer who supplies weapons to these arcade players.