A masterpiece of breakthrough CGI ingenuity -- Disney celebrates the 20th anniversary of TRON -- a dazzling film at the flashpoint of a continuing revolution in its genre. This special collector’s edition showcases an epic adventure inside a brave new world where the action is measured in microseconds.       When Flynn hacks the mainframe of his ex-employer to prove his work was stolen by another executive, he finds himself on a much bigger adventure. Beamed inside by a power-hungry Master Control Program, he joins computer gladiators on a deadly game grid, complete with high-velocity "Light Cycles" and Tron, a specialized security program. Together they fight the ultimate battle with the MCP to decide the fate of both the electronic world and the real world!       The first film to venture forth inside the previously unexplored three-dimensional realm of computer imagery, Tron dazzles with revolutionary visual effects and mind-bending action sequences.