Tintin - In Tibet

The story tells of the young reporter Tintin in search of his friend Chang Chong-Chen, who the authorities claim has died in a plane crash in the Himalayas. Convinced that Chang has survived and accompanied only by Snowy, Captain Haddock and the Sherpa guide Tharkey, Tintin crosses the Himalayas to the plateau of Tibet, along the way encountering the mysterious Yeti.

Source : Wiki