Henry Hill spent over two decades as an associate of New York's Lucchese crime family before turning FBI informant in 1980, testimony that put his old partners away and later became the basis for Martin Scorsese's Goodfellas. This Channel 4 program goes back to the real story behind that film, tracking Hill's rise from a teenage gofer running errands for local wiremen to his role in the hijackings, loan-sharking, and the 1978 Lufthansa heist at JFK Airport that made him a target once his crew started getting sloppy and violent. It follows him into the Witness Protection Program, where the anonymity meant to save his life left him broke and drinking, and traces how a Hollywood adaptation turned his mugshot into a movie poster. The film treats Hill less as a gangster archetype and more as a source, checking his account against the record it helped create.