When Gary "Eggsy" Unwin's father sacrifices his life in the line of duty during a classified military exercise, his family is given an unconventional medal - and a phone number they may use only once, should they need a favor of any kind. Seventeen years later, Eggsy is an unemployed school dropout living in his mother's flat. After he is arrested for joyriding, Eggsy uses the medal to secure his release from jail, and finds himself rescued by Harry Hart, an impeccably suave spy who owes Eggsy's father his life. Dismayed to learn of the path Eggsy has taken, Harry offers him the opportunity to turn his life around by trying out for a position with Harry's employers: Kingsman, a top-secret independent intelligence organization. Meanwhile, a tech billionaire named Richmond Valentine has devised a scheme that will have devastating consequences for everyone. Based on the comic book series "The Secret Service," written by Mark Millar and Dave Gibbons.