In the mountains of Nepal, Sabu the snow leopard and her young cub, Ka, are beginning a long and painful journey to find food. Dangers await across the snowy wastes, but the two leopards cannot rest until they reach food and safety in the next valley.

Cimru the seal struggles to survive in the waters off Scotland's Shetland Islands, while trying to keep her pup safe from storms, gulls, and predatory whales.