In the year 1997, a probationary secret agent sacrifices his life during a mission in the Middle East in order to save his term. Feeling guilty, his colleague, Henry Hart (codenamed "Galahad") delivers a bravery medal to the agent's widow, Michelle Unwin, but she refuses it out of devastation and frustration that she can not even be told how her husband died. Hart instead gives the medal to her young son, Gary "Eggsy", telling him to call the number on the back of the medal if he ever needs help.