Clannad - Theme from "Harry's Game"

Harry is an undercover agent for the British army sent to Northern Ireland to infiltrate the IRA and find (and terminate) the assassin of a British Cabinet Minister. Harry is alone: the army hasn't been told he is being put in place, his wife is fed up with him and his job and his one new friend - an Irish woman who falls for him - will be consumed by his relentless search for the assassin.