Joe Wright's critically acclaimed drama centers on a 16-year-old foster child ( Lee Ingleby) in search of his natural father who abandoned him when he was 4 years old. While on his search, he has a fling with an environmental campaigner. Paul McGann, Joanne Froggatt, Lesley Sharp, Mark Benton, Ewan Stewart, Andrew Readman, Moya Brady, Ruth McCabe, Victoria Binns, Kellie Bright and Georgina Bull.