A Mediterranean island paradise is not all that it seems; its complex of abandoned buildings were once prisons for the world's most dangerous Mafiosi; experts investigate new evidence to reveal who was imprisoned here and the secrets they left behind... (more).

Bob Hafner, Charles Debono, Claire Barratt, Dougal Jerram, Enrico Mereu, Geoffrey 'Geoff' Wawro, Gianmaria Deriv, Jim Meigs, Lee Yun-Heong, Lynette Nusbacher, Michele Mitchell, Rob Bell, Ryan Vella, Sascha Auerbach