A small yeti has escaped from a research laboratory in Shanghai and seeks refuge on the rooftops of the metropolis. There, he encounters the curious teenage girl Yi and her friends Jin and Peng. It quickly becomes clear that the trio can only save the little yeti, whom they promptly name ‘Everest’, from the sinister lab director Burnish and zoologist Dr. Zara by bringing him back to his home. Shared, the friends embark on a fascinating journey.