Alison reveals she is pregnant, but neglects to tell husband David that the baby is actually his brother's. Phil's mother plans to christen William behind the family's back.

David makes a last-ditch effort to save his marriage as the press continue to hound the family. Meanwhile, Sarah's affair gets her into hot water.

David and Alison decide to have one last go at resolving the divorce out of court. As her wedding day dawns, Megan discovers what Virginia's been up to with Tamsin.

Sarah exacts a daring and inventive revenge on cheating teacher Daniel, while a death in the family reconciles Alison and David.

Alison reaches the end of her tether with David and Graham, and throws them both out. Beth becomes increasingly convinced Megan has been having an affair with Daniel.

David and Graham go on the run and Alison fears the worst after seeing a TV news report about a robbery. Beth is desperate for revenge and holds Megan at knifepoint out on the moors.