Intimate and emotional interviews with the four members of the pop group, followed by a gig filmed at the Union Chapel in London in front of an audience of family and friends. Featuring never before seen footage of Tom, Danny, Dougie and Harry at various points in their careers, and a discussion of how time spent in group therapy helped them to make a comeback with a triumphant reunion gig at the O2 and the release of their first album in 10 years