Is It Real?Season 4 Season 4Season 4Is It Real? 2 episodes15/10/2007 Episodes Episode 1 S4 · E1 · 15/10/2007 · 45 minGhost ShipsInvestigating maritime mysteries and haunting tales of ghost ships. Episode 2 S4 · E2 · 22/10/2007 · 45 minShroud of TurinThe forensic and scientific evidence found on the Shroud of Turin.