Episode 1

S1 E1: Sisters Kat and Jo realise there's a zombie apocalypse in Birmingham, but gamer Kat has a plan: zombies can't swim - water is the safest option, and narrowboats move just marginally faster than zombies. Jo is unconvinced, until Jude, the guy she just slept with, turns into a zombie. Meanwhile, Amar and Sunny have been in Birmingham for a stag. When all trains back to London are cancelled and they're attacked by a train guard zombie, they flee. Kat and Jo narrowly escape zombie Jude and set sail on Jo's ex-boyfriend's narrowboat. Unbeknownst to them, Sunny and Amar are hidden in the boat's toilet.