Slipback (audio story)

Six part radio play starring Colin Baker and Nicola Bryant detailing the Sixth Doctor and Peri's adventure on board a starship taken over by it's dual personality computer who attemps to take the ship back to the dawn of the universe and start life again. Along the way the Doctor and Peri meet a couple of comedy policemen, an art thief and a captain who wants to infect his crew with one of his diseases...