Doctor Who: The Power of the Doctor

Feature-length special, starring Jodie Whittaker in her last appearance. A bullet train comes under attack on a distant world, seismologists disappear without trace on present day Earth, and the court of the Russian Tsar in 1916 falls under a malign influence. These strange incidents draw the Doctor into her last stand, against the combined forces of the Daleks, the Cybermen and the Master. Guest starring Sophie Aldred and Janet Fielding, reprising their roles as 1980s companions Ace and Tegan