The Old Ones have arrived and are intent on taking over the world by force.

Cutler has other plans, but when they go awry he plots revenge on his own kind.

Annie is upset as she realises she has been tasked with making the most difficult decision in order to save the world. Tom and Hal have their own plan to destroy the vampires, but when vampire leader Mr. Snow visits Hal, he demonstrates the power he holds over our hero.

Starring Lenora Crichlow as Annie, Michael Socha as Tom, Damien Molony as Hal, Matthew Ashforde as Daniels, Kate Bracken as Alex, Gina Bramhill as Eve, Mark Gatiss as Mr. Snow, Andrew Gower as Cutler, Fred Pearson as Archivist, Steven Robertson as Mr. Rook and Michael Wildman as Milo.

Thanks to BBC/Touchpaper