 Alongside Chibnall, who wrote four of the scripts and co-wrote a further three, the writers include Ed Hime, Pete McTighe and Vinay Patel, who return from writing the previous series, as well as new contributors Nina Metivier, Maxine Alderton and Charlene James.Filming commenced in January 2019 and concluded by November of that year.The series will be followed by a festive special episode.