<Tr> <Th> 266 </Th> <Td> </Td> <Td> "Smile" </Td> <Td> Lawrence Gough </Td> <Td> Frank Cottrell - Boyce </Td> <Td> 22 April 2017 (2017 - 04 - 22) </Td> <Td> 5.98 </Td> <Td> 83 </Td> </Tr> <Tr> <Td_colspan="8"> The Doctor and Bill arrive on one of Earth's first colonised planets, Gliese 581d . They are greeted only by two different types of robots: swarm robots (Vardies) and slow but sentient emojibots . An emojibot gives the Doctor and Bill discs that communicate their true emotions . The Doctor theorizes that the planet is awaiting the colonists but soon realizes that the skeletons of a set - up crew have been crushed to feed the plants . Determined to blow up the city, he finds the main ship within it and its engine room, but Bill runs into a child who has awoken from a pod . The colonists were cryogenically frozen, with a few "shepherds" woken early to work . After one shepherd died, the emojibots could not recognise grief and killed all in mourning in an onslaught against sadness . The awakened colonists decide to fight back, but the Doctor wipes the memory of the robots and reboots everything...only humans must now learn to live with the Vardies, the planet's indigenous species . Then, after the TARDIS returns them to London, the Doctor and Bill discover themselves on a frozen Thames River, an elephant walking towards them on the ice . </Td> </Tr> <Tr> <Th> 267 </Th> <Td> </Td> <Td> "Thin Ice" </Td> <Td> Bill Anderson </Td> <Td> Sarah Dollard </Td> <Td> 29 April 2017 (2017 - 04 - 29) </Td> <Td> 5.61 </Td> <Td> 84 </Td> </Tr> <Tr> <Td_colspan="8"> The Doctor and Bill find they have arrived in London in 1814, in the midst of a frost fair on the frozen Thames . The Doctor's sonic screwdriver is stolen by Spider, an orphan pickpocket led by Kitty . The Doctor and Bill chase down Spider and Kitty away from the fair . There, glowing lights under the ice encircle Spider's feet and Spider is pulled through the ice . The Doctor and Bill get into diving suits and purposely let the lights take them; they find a giant sea creature ensnared by chains . They learn from Kitty of Lord Sutcliffe; Sutcliffe affirms his family has used the creature to amass a fortune by collecting and selling its waste as a replacement for coal . Sutcliffe sends the Doctor and Bill to be eaten, while he rigs a bomb to cause the ice to shatter . The Doctor and Bill escape, and the Doctor takes the bomb and places it on the creature's chains . When Sutcliffe sets off the bomb, the creature is freed . They return to the present, where Nardole scolds the Doctor for breaking his oath . While checking the Vault beneath the University, Nardole hears something behind it knock repeatedly . </Td> </Tr>

When does the next doctor who episode air