Shiv prepares to return to London, much to the relief of the Sheridans, but her return is planned for the day of Caroline's engagement party.

Shiv's sobriety is tested more than ever when she feels Jack has abandoned her, and it becomes compounded when the growing tension in the family threatens to turn tragic.

As the house sale looms, Shiv prepares to start a new life. Can she leave her old demons behind - and can the family survive without her?

Tom’s family meeting goes awry when shocking secrets are revealed. Shiv has an important interview to focus on but she can’t seem to escape Jack. And Alex has a big question.

Shiv pushes things too far on a date with Alex, Caroline makes a shocking discovery about Rory, Ant is missing Bernie, and Tom gets some bad news.

Shiv searches high-and-low for a sponsor in Dublin as the rest of her family rationalises her staying indefinitely; Shiv organises a family dinner that turns into a disaster.

Shiv, who recently decided to go sober, returns home to Dublin from London to attend her grandmother's funeral, but is faced with difficulties when the wake gets boozy.

Shiv stumbles upon a family secret that shakes her efforts to settle into life at home; she also bonds with her new sponsor, who encourages her to do a moral inventory.

The aftermath of the family meeting, with the rest of the family harbouring a growing animosity towards Shiv, puts her on a new path that's fraught with peril.

Dinner with Max’s family takes a turn for the worse for Ant. Shiv receives some good news, and Bernie does her best to promote the memory of her murdered neighbour, Pam.