After Theresa suddenly went into respiratory arrest, Dr S’avage, Kim, Celine and Tegan desperately try to find out who’s to blame for what happened to Theresa. What will be revealed?

Meanwhile, Tom finds Nancy’s empty pill packet and asks Darren to help. Darren confronts his wife and she lies that Rick took the pills.

And with Lockie now living at the McQueen house, he and John Paul struggle to keep their hands off each other.