How Doctor Who Season 15's "The Well" Is A Sequel To David Tennant Episode Explained By Showrunner

As Doctor Who season 15 saw the TARDIS return to one of the Doctor's darkest adventures, showrunner Russell T Davies explains why he dared to make a sequel to a David Tennant-era episode. In season 15, episode 3, "The Well," the Fifteenth Doctor (Ncuti Gatwa) and Belinda's (Varada Sethu) journey home brings them to an abandoned mining colony. As the pair find the settlement's sole survivor, however, it is soon revealed that something on the planet has a terrifying connection to the Doctor and that he has visited this world long ago.