Tim Williams has a happy marriage, a good relationship with his teenage son Max and the respect of his peers. Everything about his working and personal future is looking quite bright. The problem though: 15 years ago, Tim had a brief affair with the drug-loving Nat Manning. The affair ended in Nat finding out she was pregnant. After admitting this to his wife Christine, they patched up their marriage and fought hard for custody of the child. Nat moved to London and has hardly been heard from since. But now, 10 years later, Nat is back in their lives. This time for good.

Gabriel returns to Melbourne and stays with Vince and Ally. His attraction to Ally is noticed by everyone but her. When Max discovers the body of a man, it becomes a secret that is kept between the teenagers. Romeo then takes it on himself to try and break into the dead man's house.

Vince asks his mistress Em to go on a skiing trip, which shocks Gabriel, who is going along as well. When Em is injured and they have to go back to Melbourne, Vince begs Gabriel to pretend she is his girlfriend so that Ally doesn't become suspicious.

Confronted with a hospital crisis, Gabriel contacts Tim, who plays political hardball to secure more emergency funding. Ally is devastated when she uncovers Em and Vince’s affair. She exposes Vince and takes refuge in a hotel with Nat. Now Max’s girlfriend, Charlotte moves in with Tim and Christine.