Did the crafty outlaw of Nottingham really exist? Or is the legend of Robin Hood and his band of Merry Men simply a myth? Experts separate fact from folklore in this special documentary.
A look at the battle to control Charles Bronson. Dubbed 'the most violent man in Britain', he is held in 'The Cage' in HMP Wakefield where he is less able to wreck, attack or take hostages.
Writer and comedian Dan Schreiber meets the people behind modern-day alien conspiracy theories, from Jesus being an alien to humanity being ruled by an evil reptilian overlord.
In Dallas, Detective Eddie Ibarra discovers a woman shot dead in the lobby of her work place. Will a video surveillance tape give him any leads? (S5, ep 14)
Detective Rick Duggan unravels the mystery of a dumped body rolled up in a carpet and Detective Fernando Bosch takes it personally when a 66 year-old Cuban man is shot. (S5, ep 13)
Detectives Bob Ermatinger and Ken Penrod investigate the murder of an unidentified young woman found shot to death at White Rock Lake. (S5, ep 12)
In Miami, a mechanic is shot to death in his shop. Detective Juan Hererra and his team focus on why someone would want the victim dead. (S6, ep 11)
In Memphis, a well-loved neighbourhood investor is shot, and the only eyewitness is a young girl on her way home from school. (S5, ep 11)
In Dallas, Detective Phil Harding investigates a brutal shooting in a motel and, in Memphis, Sergeant Ron Collins must track down a murder suspect. (S6, ep 10)
In Memphis, Tennessee, Sergeant Caroline Mason takes it personally when a 75-year-old man is shot dead in her old neighbourhood.