As a picturesque and perfect summer arrives in Michigan, a father and son prepare to sail around Lake Superior, one of the largest freshwater lakes in the world. It is a trip three years in the making and filled with planned stops for wreck diving, camping, and hiking. The water is deep, the wind is just right, and the sunsets are sublime. If there was ever a place for Robin and Tristian Norris to "get away from it all," the remote Superior coastline is it.
But when their anchor fouls, Robin not only uncovers a lost hoard of valuable gems but also discovers a mysterious stowaway aboard their boat. Who is she? And what is she running from?
What started as a paradisiacal trip quickly turns into a dangerous game of cat-and-mouse, and the trio is forced to battle high-tech pirates who'd do anything to reclaim their prize...in a nightmare that tests not only the trio's bond, but their will to survive.