Late December, 1999: the brink of a new millennium. The TARDIS crash-lands in San Francisco's Chinatown and a horrific shooting forces the Doctor to regenerate. But the Doctor is not the only time-traveller in San Francisco. His oldest adversary, the Master, is there as well, desperately trying to steal the Doctor's newly-regenerated body. And soon, the Doctor is faced with a choice: to save his own life, or the billions of people who have no future unless the Master is stopped. If only the Doctor could remember how...