April (Sophie Hopkins), a student at Coal Hill Academy, asks Tanya (Vivian Oparah) to help with the decorating for the prom.

Rhodia was attacked by Corakinus's people, the Shadow Kin, who wiped out all but Charlie and Miss Quill, who were rescued by the Doctor (Peter Capaldi).

Corakinus reveals that he is here for the Cabinet of Souls, the resting place for Charlie's people after they die; the Kin believe it to be a weapon.

Tanya, with assistance from the Doctor, turns on the gym's flood lights to eliminate the shadows that give the Kin substance.

The Doctor gives Ram a prosthetic leg from the TARDIS, and instructs the five students and Quill to safeguard the school against alien attacks.

[3] The production staff aimed to gear the audience towards the young adult demographic, the prior area of fiction writing expertise of Patrick Ness.

[5] Executive producer Brian Minchin said that he planned to not make the series as dark as prior Doctor Who spin-off show, Torchwood.

[2] In an interview with Radio Times Minchin explained that the division to create a Doctor Who spin-off was in part the fact that Patrick Ness at the helm of the show was involved.

Producer Derek Ritchie, told Radio Times: "We’re kind of peppering the show with little easter eggs wherever possible."

"[1] Digital Spy enjoyed the writing style of the episode: "Ness's script zips all over the place, demanding a huge emotional range from Greg Austin (Charlie), Sophie Hopkins (April), Fady Elsayed (Ram) and Vivian Oparah (Tanya) and these kids knock it out of the park, nailing every single beat.

"[4] Den of Geek recommended the series and critic Louisa Mellor summed it up as: "Witty, energetic Doctor Who spin-off Class wears its influences well and gets a great deal right for its target audience.

"[9] WalesOnline gave the series first couple episodes a rating of five starts out of five, with writer David Prince summarizing the show as: "It's a bit like a British Buffy and Cardiff looks amazing - but it's not for kids".