Mark chopper read established a reputation of infamy by becoming one of the toughest criminals in australian history'. '.strtoupper('b')ut in order to secure the affections of the woman he loves chopper fights to go straight.yet the sins of his past his ego and an ongoing feud with syd collins will make his hopes of a straight life a dangerous and near impossible enterprise'. '.strtoupper('u')nderbelly files chopper explores the collision of chopper's two competing identities the myth and the man.based on the true story of mark chopper read, one of australia's most notorious criminals, chopper the untold story follows the vicious tough guy as he attempts to go straight after leaving prison'. '.strtoupper('h')e makes a commitment to margaret, the woman he loves, to clean up his act, yet the sins of his past, his ego and an ongoing feud with syd collins will make this promise impossible to keep.back in prison, he tries to prove he's a reformed character by marrying mary ann hodge, but his heart still belongs to margaret.chopper the untold story moves seamlessly between his criminal past during the 1990s and his new career as a comedian'. '.strtoupper('h')is past eventually catches up with him and, after the police interrupt a show in 2002, he confesses to a murder but is this just another performance?