Award-winning filmmakers and National Geographic Explorers-In-Residence Dereck and Beverly Joubert chronicle the suspense-filled tale of a determined lioness ready to try anything – and risk everything – to keep her family alive. Fleeing a raging fire and a rival pride headed by a dangerous cub-killing lioness, Ma di Tau and her fragile cubs must make their perilous escape by swimming across a crocodile infested river and facing off with fierce horned buffalo.