An introductory montage shows the fallout of the economic crisis in the European Union and a weakened NATO alliance, amid increasing cooperation between an increasingly militant North Korea and ultra-nationalist-controlled Russia. The increased deployment of U.S. troops abroad leaves the mainland vulnerable. U.S. Marine Jed Eckert is home on leave in Spokane, Washington. He reunites with his father, Spokane Police Sergeant Tom Eckert and his brother, football player Matt Eckert. The morning after a mysterious power outage, Jed and Matt are shocked to see swarms of invading North Korean paratroopers and transport aircraft. Their father tells them to flee to their cabin in the woods while he helps the townspeople. They are later joined there by Robert Kitner, Daryl Jenkins, and Pete. Tensions build as the teens try to decide whether to surrender to the invaders or resist, with Pete ending up betraying their position. North Korean soldiers, under the command of Captain Cho, bring Sergeant Eckert and the mayor out to convince the group to surrender; while the mayor persuades the boys to give up, Cho executes Sergeant Eckert after he refuses to cooperate and actively encourages them to resist.