The 3-D action-thriller Sanctum, from executive producer James Cameron, follows a team of underwater cave divers on a treacherous expedition to the largest, most beautiful and least accessible cave system on Earth. When a tropical storm forces them deep into the caverns, they must fight raging water, deadly terrain and creeping panic as they search for an unknown escape route to the sea. Master diver Frank McGuire (Richard Roxburgh) has explored the South Pacific’s Esa-ala Caves for months. But when his exit is cut off in a flash flood, Frank’s team–including 17-year-old son Josh (Rhys Wakefield) and financier Carl Hurley (Ioan Gruffudd)–are forced to radically alter plans. With dwindling supplies, the crew must navigate an underwater labyrinth to make it out. Soon, they are confronted with the unavoidable question: Can they survive, or will they be trapped forever?
At the heart of this true story is Damien Oliver, a young jockey who loses his only brother in a tragic racing accident, hauntingly reflecting of the way their father died 27 years earlier. After suffering through a series of discouraging defeats, Damien teams with Irish trainer Dermot Weld, and triumphs at the 2002 Melbourne Cup in one of the most thrilling finales in sporting history.