Jia、Yi、Bing、Ding are four famous Beijing Opera Actors who live in the two-dimensional world. One day Bing drinking the forbidden drug and entered the three-dimensional world by accident. Jia、Yi、Ding must bring Bing back to the two-dimensional world in a limited time, otherwise, the four cannot go back to the two-dimensional world forever. They met the impoverished musician Shisan who lead them as the guide to the adventurous life in the new world. Behind the complicated surface of the adventure, a huge conspiracy is unveiling itself.