Zomboat!

Amar and Jo go to the supermarket where Jo used to work. Kat realises the canal is draining! She needs to get Amar and Jo back. Sunny admits that he is scared of the dark.

Jo and Amar are trapped with Chloe, Jo's old colleague. Amar accidentally unleashes Jo's old (now zombie) boss! Kat arrives but gets trapped too. Chloe idolises Jo so when Kat accidentally reveals that Jo cheated on a work competition, Chloe wants revenge. They're about to escape, but Chloe locks them in – payback! But Sunny gets over his fear of the dark and rescues them.

Kat and Sunny kissed last night, Kat's mortified. Jo thinks she should relax, but Kat points out that Zombie Jude is still following them. Another boat blocks their way, ‘Free Spirit'; Jo and Amar move it, and Jo decides to stay on it to avoid Kat's bossiness. Kat and Sunny are held hostage when they can't pay for the fuel that Dorothy needs. Kat tells Sunny they're "just friends". Jo's loving life on Free Spirit (Amar not so much) but accidentally crashes the boat. Jude attacks. Kat and Sunny arrive and Jo sets Jude on fire – finally he's dead. Peace is restored.

The gang are taken to the local evacuation centre, but Kat doesn't trust the government. Whilst there, Jo sees Rob and kisses him. He needs to find Patient Zero - Jude, the zombie Jo just killed. Zombies attack and Kat, Jo and Rob escape, separating them from Sunny and Amar. Kat sees Jo's been bitten, but is shocked that she has has no zombie symptoms.