As Kevin Flynn searches for proof that he invented a hit video game, he is "digitalized" by a laser and finds himself inside The Grid, where programs suffer under the tyrannical rule of the Master Control Program. With the help of TRON, a security program, Flynn seeks to free The Grid from the MCP.
A computer hacker is abducted into the digital world and forced to participate in gladiatorial games where his only chance of escape is with the help of a heroic security program.