Walking with beasts (walking with dinosaurs(2013 movie) sequel)

Plot:
After his ill parents get killed by bruce the homotherium and his group, a young mammoth named roger must travel with his herd to find food, and is accompanied by his love interest amy and his mean brother billy who is replacing his father as new leader of the herd.along the way he encounters sneaky cave lions and unpredictable wooly rhinos.he experiences many surprises and must avenge his parents at a cliff that has a 5 metre drop who will fall to their death, roger or bruce?!