TheupcomingfestivespecialwillseethereturnofoneoftheDoctorsbiggestandmostfearedenemies-theDaleks.TheDoctorislockedawayinahigh-securityalienprison.Isolated,alone,withnohopeofescape.Faraway,onEarth,herbestfriends,Yaz,RyanandGrahamhavetopickuptheirliveswithouther.Butitsnoteasy.Oldhabitsdiehard.Especiallywhentheyd...