As the New Year begins, a terrifying evil is stirring from across the centuries of Earth's history. As the Doctor, Ryan, Graham and Yaz return home, will they be able to overcome the threat to planet Earth?
Three warriors from different armies slice a mysterious creature into three. In the future it re-forms with two archaeologists, the Thirteenth Doctor, Ryan Sinclair, Yasmin Khan, Aaron Sinclair and the brilliant Graham O' Brian having to stop it after discovering that it's a Reconnaissance Dalek.