"After being rescued as infants from a sinking ocean liner in 1914, Marian and Jamie Graves are raised by their dissolute uncle in Missoula, Montana. There --after encountering a pair of pilots passing through town in a beat up Cessna--Marian commences her lifelong love affair with flight. At fifteen, she drops out of school and finds an unexpected and dangerous patron in a wealthy rancher who provides a plane and subsidizes her lessons, an arrangement...

Two sisters vacationing in Mexico are trapped in a shark cage at the bottom of the ocean. With less than an hour of oxygen left and great white sharks circling nearby, they must fight to survive.