Watch the moment we said goodbye to the Fifteenth Doctor and hello to... ⁣ ⁣ #DoctorWho #SeasonTwo #TheRealityWar #NcutiGatwa #Throwback ⁣ ⁣ Doctor Who: The Doctor and friends travel from the dawn of human history to distant alien worlds. And everywhere they go, they find adventure, terror, fun, chases, joy and monsters.