Sarah Smart

A year after their youngest goes missing, Eve takes her family to Crickley Hall to escape the anniversary. When they realize the place is haunted they try to leave but Eve hears a message that her son is alive and the ghosts know where he is.

A solar tsunami sends the TARDIS hurtling towards a factory on earth where human doppelgangers are used to mine dangerous acid. A second wave hits and the 'Gangers' separate. Can the Doctor prevent an all out civil war between the humans and the 'almost people' before the factory explodes?

As the solar storm rages and the factory crumbles, a Ganger driven mad by the memories of being 'decommissioned' is seeking revenge. The Doctor must convince the terrified factory workers to embrace their own humanity and work together with their Gangers to overcome a monster of their own making.