The Doctor and his companion, Ruby Sunday, travel across time and space, having adventures from the Regency era in England to war-torn future worlds, from the dawn of human history to distant alien worlds. Throughout their adventures in the TARDIS – a time-traveling ship shaped like a police box – they encounter incredible friends and dangerous foes, including a terrifying bogeyman and the Doctor's most powerful enemy yet. And everywhere they go, they find adventure, terror, fun, chases, joy, and monsters.