"In a future world ravaged by global warming, people have lost the ability to dream, and the dreamlessness has led to widespread madness. The only people still able to dream are North America's indigenous population - and it is their marrow that holds the cure for the rest of the world. But getting the marrow - and dreams - means death for the unwilling donors. Driven to flight, a 15-year-old and his companions struggle for survival, attempt to reunite...

Jack discovers that the only way to protect the Earth from ecological disaster at the hands of the Dark Army is to lock time, and he must choose between staying in the present or returning to the future world from which he came.