If you’ve enjoyed the first three episodes of Doctor Who spin-off Class, then we have some good news – because according to series creator Patrick Ness, this week’s episode kicks off the biggest story yet.

https://twitter.com/Patrick_Ness/status/793736310070607873?ref_src=twsrc%5Etfw

https://twitter.com/Patrick_Ness/status/793736458653827072?ref_src=twsrc%5Etfw

Talking to fans on his Twitter account, Ness revealed that this Saturday’s story “Co-owner of a Lonely Heart” was more than just any ordinary episode, adding that some “shocks” were in store for Class’ first double edition.

Class episode 4 will be released on BBC3 this Saturday at 10.00am