This episode was filmed in East Timor, David`s goal is to dive unexplored reefs that literally drop thousands of meters into the depths, David encounters some strange creatures that may have never been filmed before and also finds undersea treasure! While on location in this exotic island, David and his old friend Mark encounter a huge snake with a head the size of a small alligator, but their is a sobering part to David`s expedition to East Timor, the refugee children and especially what David attempts to achieve with them.