He's been travelling in time for 900 years, but the Doctor is being faced with something he really hasn't known before.
The Doctor, the Last of the Time Lords and The Oncoming Storm, is bored. Maybe it's just as well. He's dropped Clara off on a safer holiday - Tenerife - and has returned to Earth, his favourite planet.
He's there for a few days, and every day he seems to bump into the same bloke, a bloke just as bored as him. An Average Joe who really isn't average at all. The Doctor sees all of this. Mr Average Joe is heading for a fate that could spell a serious threat to the human race - but can there be an intervention before this ordinary man is encased in silver forever? Script to follow soon!