An online illicit dating website is hacked, providing Hannah with an explosive case. At home, Ruth hosts a dinner party for all the family with disastrous consequences.

Hannah, for so long adept at navigating other people's lives and relationships, is confronted with painful questions about her own marriage.

Things become increasingly complicated for Hannah as she faces Christie’s ex-wife in a tricky prenup, and the three sisters meet their father for the first time.

A leading divorce lawyer finds business is personal when she leaves the family firm for a rival and finally faces her estranged father, who walked out 30 years ago.

Hannah represents a woman fighting to save the embryos created during a marriage that is now ending in divorce. Oscar’s return continues to have an impact on the entire family.

Hannah meets a TV presenter who needs her help, Ruth comes to terms with a different pace of life, and Zander introduces an unsettling new colleague to the firm.

Maya, Oscar's second wife, finally arrives in London. But as the family try to heal divisions and look to the future, Hannah and Nathan are still fighting to save their marriage.

As Hannah prepares Fi Hansen for her divorce, she feels increasingly stressed by the double life she is leading with Christie when Nathan’s suspicions are raised.

With the revelation of Hannah and Christie’s affair out in the open, Hannah tries to make amends and rebuild her marriage.

Hannah's personal and professional lives collide when Nathan helps out with the Hansen case, as she desperately tries to cover up evidence of her affair with Christie.

Hannah and Nathan are in the final stages of negotiating their divorce, but when it becomes clear Nathan has met someone else, the amicable separation takes a turn for the worse.

Tensions rise as Hannah and Nathan struggle to disentangle their lives. Christie arrives in London and Rose has a clear out.

Rose grapples with James’ absence at the family camping trip. Ruth learns of Nina and Tyler’s affair, and the extent of Tyler’s deceit is revealed.

Secrets come out and lies unravel as Hannah deals with the fallout from her Anniversary Party, while the Noble Hale Defoe team attend an awards ceremony for Ruth.

After Hannah’s heart-breaking confession to Nathan about the night before their wedding, their marriage is in turmoil.

Hannah’s relationship with Nathan unravels when he drops a bombshell, and Rose struggles to cope with her grief.

Hannah allows herself to dream of a life elsewhere with Christie, whilst Nathan starts to doubt his relationship with Kate. Ruth breaks some devastating news to Zander.

With Kate and Nathan’s relationship on the rocks Hannah makes a decision which shapes all their futures.