For four backpackers it seemed like a dream come true. A week cruising the world's most beautiful coral reef on their own yacht. But when their boat capsizes, leaving them stranded on an overturned hull, the dream turns into a nightmare. What should they do? Stay with a damaged hull that could sink at any moment, or try to swim for land? Finally deciding to swim, the friends take to the water. As they close in on land, a fin surfaces and with it the realization that they are being stalked by a deadly fifteen-foot white pointer shark. Will any of them make the swim, or will the sea take what it wants?