S1, E6: The gang are taken to the local evacuation centre, but Kat doesn't trust the government. While 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 shows no zombie symptoms...