Steffanie and Harry Hawkins, lost in ancient America while searching for Joshua Plimpton, join the Nephites in their final struggle at Cumorah, while Meagan, Apollus, Ryan, and the Prophet Moroni try to reach General Mormon in order to thwart a Nephite disaster, and Jim and Jenny Hawkins fight for survival on the opposite side of the world, piecing together a puzzle that may hold the key to everyone's safe return home.