S32·E125 Episode 7395

Zoe and Walter are about to head back to Sydney when Zoe takes a turn for the worst. She is rushed to hospital where Karl diagnoses her weakened immune system. Walter believes the only thing that can save Zoe is a transplant, but accepts that Sonya and Toadie are still undecided about having Nell tested. Karl is confused and has a private word with Sonya.