In the wake of Michael’s death, the family stay with Darren at his country house, but Paul’s attempt to give Ally space by taking on kid duties and Darren’s fixation on work doesn’t help Ally find a chance to say goodbye.

It’s half term and Luke is responsible for taking Lenny the class bear on an adventure. Lenny has been to Italy, Peru and beyond, but Paul can’t even manage to get the family and the godforsaken bear out of the house to the local park.

Paul attempts to focus on his upcoming wedding but is constantly thwarted by his family; Ally is distracted by work, Luke is misbehaving at school and Leah (Stella Gonet) doesn’t understand why they are even bothering to get married.

Family life is thrown off kilter as Ally spends her weekdays in Berlin and weekends in London. Paul, Luke and Ava try to muddle through without her, but the children aren’t sleeping again and it takes its toll on Paul.

Luke’s condition worsens and he is admitted to a specialist pediatric unit. As Paul, Ally and their parents desperately wait for news, stress and fear cause cracks to form within the family.

It’s five years since we last saw the Worsleys, with Paul and Ally on the verge of splitting, and Jim and Jackie in turmoil. Things are no less dramatic now as Luke and girlfriend Maya drop a bombshell at Christmas dinner that will change everyone’s lives forever.

The reality of Luke’s announcement hits, and Paul and Ally worry about the decision he and Maya have made and whether they should support them. As a New Year starts, the Worsley family gather together with Maya’s family, united in their love and worry.

Ally is appalled that she’s about to turn 50 and bans the family from ever mentioning that number. Paul tries to help Luke, who is overwhelmed by learning to drive and becoming a dad, while Ava meets a charismatic girl called Holly.

A calendar mix-up turns Paul and Ally’s fun night out into a stressful night in. A happy Ava finds her mood changing as the evening progresses. Luke turns up with an unwelcome friend and Carl finally sees the inside of the Worsley’s house.

Paul and Ally find themselves parenting Jim and Jackie as well as a conflicted Luke. Ava and Holly get closer and Ava decides to take a risk, while Paul meets an old friend and realizes that he might, after all, be happy.