Lt. Waters travels to war-torn Nigeria to rescue Dr. Lena Kendricks (Monica Bellucci), a U.S. citizen who runs a mission in the countryside. But when Lt. Waters arrives, Dr. Kendricks refuses to abandon the refugees under her care. She implores Waters to escort them on a dangerous trek through the dense jungle to the nearby border of Cameroon. During the journey, the S.E.A.L.s find themselves the unwitting guardians of a man sought by the rebel militia. This further endangers their already hazardous mission. But all the while it strengthens Waters� resolve to protect Lena and the refugees, and to deliver them safely across the border.