After defeating Master Control and restoring freedom to the digital realm, gaming software genius Kevin Flynn (Jeff Bridges) suddenly disappears, leaving his young son Sam to grown up alone in the real world. But everything changes when Sam turns 27, and his father's friend Alan Bradley (Bruce Boxleitner) receives a message on his old pager from the long-abandoned Flynn's Arcade. While investigating Kevin's disappearance, Sam finds himself pulled into the same world of fierce programs and gladiatorial games where his father has been living for 25 years. Together, father and son race through a cyber universe threatened by the elder Flynn's upgraded program, CLU 2, whose hunger for power has gotten out of control.