Introduction: Kevin Flynn, a famous computer game developer, mysteriously disappeared while creating his latest game. Many years later, his son, 27-year-old scientific genius Sam Flynn, received a mysterious message from his long-lost father (in fact, Crewe forged the message to make him enter the electronic world). According to the source, Sam went into his father's closed office for many years to find out the truth about his father's disappearance. He found the secret room and computer where his father worked. After a series of keyboard operations, Sam found himself magically digitized and entered the electronic online game world created by his father. In this world, all people and things are "programs". Kevin was forced to participate in a series of thrilling and life-and-death game wars as a program. He was surprised to find that the "body double" Crewe created by his father in the electronic network world was going to kill him.