Build a movie plot around this: After capture, who is Marty's only ally? Fergus.
Answer:
Martin McGartland (Jim Sturgess) is a 21-year-old street hustler from Northern Ireland, living in the late 1980s. The Irish Republican Army wants to recruit him, but he is reluctant because of what he sees as their cruel street justice. Because of his connection to the community, the British police want him to infiltrate and spy on the IRA. Marty agrees because of the car and money he gets from the police and because he despises the IRA. The IRA accepts him as a Volunteer and in that position he learns of various planned attacks. He then informs Fergus, his police contact, to prevent these attacks. He builds up a new sense of self-esteem, but he cannot tell his family and friends about his activities. Even his new girlfriend Lara (Natalie Press) only notices that he seems to do some work for the IRA, which worries her.All along, the British accept the risk that the IRA may discover that Marty works for them. They do not plan to rescue him in that case. When it happens, the IRA capture and torture Marty, but he manages to escape by throwing himself out of a window. His handler Fergus is now his only allyhe finds him and helps him hide. Fergus offers to arrange for Marty and Lara and their children to live in Scotland but Marty realises that she would never be able to feel safe. He then goes on the run to Canada alone, leaving his family behind. As shown at the start of the film, he is shot there by the IRA and survives.