World Game (Doctor Who) - Plot

Plot

Under threat of execution after his conviction by the Time Lords at the end of The War Games, the Doctor is granted a reprieve if he agrees to undertake missions for the Celestial Intervention Agency. Accompanied and supervised by the ambitious Lady Serena, their first mission is to halt attacks upon three key figures in Earth's past: Napoleon Bonaparte, The Duke of Wellington, and Charles Maurice de Talleyrand.

The Doctor re-encounters the Player known as the Countess and struggles to end her Grand Plan to allow Napoleon to win his various European campaigns. Her plan to set the City States of Europe against each other is stopped by the Doctor, despite her setting a Raston Warrior Robot and a vampire on him and Serena. In preventing the Countess's assassination scheme on Wellington, Serena is killed. The Countess has many back up plans, and at the Battle of Waterloo, her plan to prevent the Prussians coming to the English army's relief is thwarted when the Doctor imitates Napoleon himself to get through the French lines and deliver new orders to the Prussian commander.

After returning to Gallifrey and discovering a traitor in the CIA who had been using the time scoop to assist the Countess, the Doctor is sent on a mission to investigate the time travel experiments of Kartz and Reimer.