The famous computer game developer famous Kevin Flynn () mysteriously disappeared in creating their latest game in the process, after many years his son --27-year-old technology genius Sam Flynn () father into the office closed for many years to find his father missing the truth. He found the secret room and computer where his father worked. After a series of keyboard operations, Sam found that he was magically digitized and entered the world of electronic online games created by his father. Here Kevin is forced to participate in the program as a thrilling, life and death first-line game World War II, also surprised to find his father in the world electronic network created a "double" - Crewe () Actually wanted to kill him.
At a critical moment, Sam was rescued by a female soldier named "Kui La" who suddenly appeared and met his father who had been trapped in an electronic network for 20 years in a hidden residence. It turns out that the "stand-in" Crewe created by Kevin Flynn in the process of developing this electronic network world that could change the human world betrayed him. Crewe controlled the entire electronic network world and prevented him from returning to the human world from the gate. Sam insists that his father return to the real world with him, but they are faced with the almost omnipotent "Cru" and the "Cru" vainly attempting to enter and control the real world of mankind through the electronic world. In order to go home and prevent the disaster that "Creo" will bring to mankind, the father and son and Kwai La embarked on a life and death adventure in the world of electronic networks that is step by step crisis.
