A snow leopard and her cubs have been separated from their territory by an avalanche in the Himalaya Mountains, and it is up to Ben and Zoe to find the rare cats and guide them to safety before the local villagers poison them.

Twins Ben and Zoe are recruited by their mysterious uncle Dr. Stephen Fisher, a famous zoologist, to rescue a Sumatran tiger from poachers.

The twins Ben and Zoe are sent to an Alaskan village in the far north to investigate the death of a mother polar bear and find and rescue her two orphaned cubs.

Twins Ben and Zoe are sent by their uncle Dr. Stephen Fisher to rescue an orphaned giant panda cub, which has wandered from its sanctuary after the 2008 earthquake in China's Sichuan Province.