Construction worker Douglas Quaid discovers a memory chip in his brain during a virtual-reality trip. He also finds that his past has been invented to conceal a plot of planetary domination. Soon, he's off to Mars to find out who he is and who planted the chip.
Time-traveling bounty hunters find a doomed race-car driver in the past and bring him to 2009 New York, where his mind will be replaced with that of a terminally ill billionaire.
A sleazy cable-TV programmer begins to see his life and the future of media spin out of control in a very unusual fashion when he acquires a new kind of programming for his station.