When the press seizes on Max's involvement in the car accident, Tim finds himself facing a political minefield. Nat pushes Ally to leave Vince permanently. When Gabriel declares his intentions to win Ally, Vince is galvanized into action. In the wake of the accident, all of Christine's mounting anger is unleashed. As pressure builds, the landscape is irrevocably transformed by an unexpected turn of events.
Tim finds out through Em that Vince's shady dealings will compromise him politically and could destroy his career. With his marriage on the line, Vince struggles to manage his family, ignoring Tim's desire for confrontation. Nat finally elicits Tim's confession that he’s still attracted to her. As the tension mounts between Max, Charlotte and Romeo, all the teenagers are involved in a car accident.
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.
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.