Five friends set sail and their yacht is overturned by a strange and sudden storm. A mysterious ship arrives to rescue them, and what happens next cannot be explained.Five friends set sail and their yacht is overturned by a strange and sudden storm. A mysterious ship arrives to rescue them, and what happens next cannot be explained.Five friends set sail and their yacht is overturned by a strange and sudden storm. A mysterious ship arrives to rescue them, and what happens next cannot be explained.