In 1987, soldier Patrick Provis was left fighting for his life after being hit by an IRA mortar. Facing extraordinary dangers, an army helicopter flew in to rescue him and, against the odds, Patrick survived. Now desperate to draw a line under the trauma that continues to haunt him, Patrick can't rest until he’s thanked the person who took the decision to rescue him. But so far his 20-year search has got him nowhere. With military records from the Troubles shrouded in secrecy, what are the chances of Matt succeeding where Patrick has failed?