An ultra-marathoner and a commercial fisherman are left on a deserted beach on the island of Dominica. They battle starvation, dehydration and each other, but when the island claims a casualty, the other must decide whether to finish the challenge alone.An ultra-marathoner and a commercial fisherman are left on a deserted beach on the island of Dominica. They battle starvation, dehydration and each other, but when the island claims a casualty, the other must decide whether to finish the challenge alone.