BBC Three heads to Class with Doctor Who spin off
Coal Hill School has been a regular site of alien activity since Doctor Who began in 1963, and all those years of time-travel have caused the barriers between time and space to start wearing dangerously thin, and something frightening is waiting on the other side.
This young adult drama is being created by young adult writer Patrick Ness, and will star The Night Manager, Happy Valley and Mr Selfridge actor Katherine Kelly as a Coal Hill teacher.