Vienna Salvatori boards the Kairos in search of a stolen gem, and young thief Passion is hiding out. Both women are about to be thrown together - and it's no accident. For the ship's Vortex drive has brought the Master back from oblivion.
Finally reaching the head of the ship, Vienna and Passion find themselves exactly where the Master wants them. The Time Lord has more than revenge on his mind, however, and if they can't stop him, nothing in the universe will.