The American journalist Nick Orton is trained in the world of gods and Chinese monsters during a search for the long-lost manuscript "Wu Cheng En", "Hsi Yu Chi" (The Journey to the West). He is accompanied in his journey by a humanoid monkey with incredible strength and magical powers, a human-pig man-man, and his brother-in-arms, an ex-cannibal. Based on one of the greatest stories in Chinese history.