Tron: Betrayal is a two-issue mini-series published by Marvel in October 2010. It bridges the gap between the original movie Tron (Walt Disney Productions, 1982) and sequel Tron: Legacy (Walt Disney Pictures, December 2010). The series takes place in 1983 and shortly after the events of the original movie, and also features the first appearance of many new characters in Tron: Legacy.
Kevin Flynn is now in charge of Encom developing "The Grid", a digital world occupied by living programs. When the world develops a life of its own, Flynn has to seek out the help of Tron to control it.