The children won't sleep. Paul and Ally thought these nights were over. Paul spends the night fighting his own anger and his children's inability to go to sleep.

Luke's parents' evening and the surprise arrival of Ally's estranged father cause Paul and Ally to examine their hopes and dreams for Luke and Ava and discover how far they are willing to go for the sake of their children.

Ally attempts to acclimatise to Michael's continued presence while Paul, suspected of intentionally hurting his mum, begins to question if his accident-prone son's frequent injuries might actually be his fault.

Michael thrives in his new role as dad and granddad, but Paul and Ally can't adapt to his presence as easily as the children can. Luke's hunt for proof that Santa doesn't exist puts Paul's claim that he never lies to the test.

Sprout the family gerbil has died, but explaining loss to Luke and Ava is a difficult task. Very soon afterwards, Ally herself struggles to cope with a significant loss.

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 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 Eva 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. Through this ordeal, Paul realizes things about himself and his relationship with his children.

The kids are growing up fast - Ava is now 10 and Luke is about to turn 13. With their burgeoning independence comes the question of whether Paul and Ally's parenting style still works. Clue: no.

Luke's anxiety is becoming a problem at home and school. Would a medical diagnosis make his life easier or harder? Ally faces further tension after her mother Leah is robbed.

Paul fears his culturally fragmented family have lost a vital connection. Gentrification impacts Jim and Jackie as the last of their old neighbours move out and more young professionals move in.

As a death impacts the older generation of the Worsley family, Ava struggles to keep a profound secret from Paul, and Ally finds it equally difficult to hide her true feelings from Luke.

As Ally contemplates her pregnancy, a new piece of information blows her world apart. A worried Ava tries to help her mom while Luke regrets lying about his anxiety.

Ally is under huge pressure, but no-one seems to want to listen to her. Jim and Jackie are excited about a possible move to the coast and, much to Paul's surprise, so is he.

Ally and Paul's marriage is in crisis. Paul's obsessed by what happened but won't discuss it. An increasingly troubled Luke refuses to go to school and Leah and Alex make an announcement.

As he and Ally continue to feel distant, Paul rekindles an old friendship, but at a cost to Ava. Luke surprises everyone by getting a best friend. Jim and Jackie are forced to move.

As Jim and Jackie's golden wedding anniversary party is plunged into darkness by a power outage, the growing tensions between Paul and Luke reach an explosive and terrifying climax.

On the day of Leah and Alex's wedding, Paul and Ally find they have only a few hours to deal with a seemingly insoluble family crisis, leading Paul to make the hardest decision of his life.

Paul and the family deal with the consequences of the decision he made to move out for the good of Luke. Good and bad past family events in flashbacks occupy their thoughts.

The family are accepting their separation routines. Paul gets comfortable with his new calm and serene locale; Ally solely deals with the harried and hectic lifestyle of kids, compounded by a crisis at work.

A back injury leaves Paul high on Leah's supply, as he raids her collection of heavy-duty painkillers. As Luke and his dad get closer, Ally and Ava drift further apart, and Ally looks for someone to blame.

Paul and Ally deal with their aging bodies, and tempers seethe.

Professional and personal dramas encircle Ally and Paul, overshadowing Ava's birthday.

Pressures from all three generations of the family, the kids, the parents, and the grandparents, through personal crises, cause the lids to blow off in different strengths and directions.

Paul and Ally resolve their wounded feelings from the past episode, then deal with new issues stemming from problems of Ava and Luke.

Paul takes his parents to the countryside, to recreate a cherished memory. But the revelation of secrets leaves all of them reeling.

Jim and Jackie are both struggling under their new circumstances.

A furious argument between Paul and Ally is interrupted by Ava's news about Jim.

Five years later, Paul and Ally are on the verge of splitting; Jim and Jackie are in turmoil; Luke and his girlfriend, Maya, drop a bombshell at Christmas dinner that will change everyone's lives forever.

The reality of Luke's announcement hits; Paul and Ally worry about the decision he and Maya made and whether they should support them; as a new year starts, the 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 become a dad; Ava meets a charismatic girl called Holly.

Paul and Ally juggle full-time careers, aging parents, a mortgage, upheavals in their relationship and the unenviable curve-balls of parenting their young children, Luke and Ava.

Paul and Ally find themselves parenting Jim and Jackie as well as 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.

A chat with Darren and a chance encounter convince Ally she needs more friends, so she decides to reunite her antenatal class. Ally tells Luke and Ava this was a friendship group with no arseholes. But 17 years is a long time.

Paul and Ally take a "family" vacation without the kids. Luke makes a decision about the future of his education and life with Maya.

Paul and Ally are on their way back from their holiday, Luke and Maya discuss Luke's future prospects when Maya's water breaks and goes into labor. Ally argues with Maya's mom over ignoring Luke's role during Maya's labor reiterating she's fighting Luke's corner. Luke has major anxiety, Maya's father asks him to step up and be a man in a very loving and polite way. Paul interjects after finding Luke, then Luke talks to Paul about his father-in-law Sunil's request and Paul explains to Luke that anybody can be a child when anxiety comes and he says he'll teach him how to be a man. Later they are seen in the nursery where Paul teaches Luke how to bottle feed baby Jay where the maternity ward's nurse says to Luke he's doing amazing. Maya asks Luke to stay the night instead of her mom, Ava saves the day by bringing Jay's newborn hat which triggered part of Luke's anxiety after not finding it for Maya's labor. Everyone walks out to have breakfast as Maya's dad paints a beautiful picture of the breakfast place dishes. Paul and Ava are both on their phones. Paul says congrats to his father on becoming a great-grand dad, while Ava talks to Grace on the phone. Fade out.

As Paul and Ally try to help Luke, struggling with being both a dad and a student, they find they have very different ideas about the best way forward. Jackie's condition is becoming more noticeable, and Jim is determined to help out.

Jackie's health is continuing to worsen. Paul helps out a distressed Luke but finds himself in more conflict with Ally. At Baby Jay's naming party, Ava declares her love, and Paul makes an offer that will take him and Ally back in time.

A chat with Darren and a chance encounter convince Ally she needs more friends, so she decides to reunite her antenatal class. Ally tells Luke and Ava this was a friendship group with no arseholes. But 17 years is a long time.

As Ally contemplates her pregnancy, a new piece of information blows her world apart. A worried Ava tries to help her mom while Luke regrets lying about his anxiety.

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.

Michael thrives in his new role as dad and granddad, but Paul and Ally can't adapt to his presence as easily as the children can. Luke's hunt for proof that Santa doesn't exist puts Paul's claim that he never lies to the test.

Ally is under huge pressure, but no-one seems to want to listen to her. Jim and Jackie are excited about a possible move to the coast and, much to Paul's surprise, so is he.

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 become a dad; Ava meets a charismatic girl called Holly.

Paul and Ally resolve their wounded feelings from the past episode, then deal with new issues stemming from problems of Ava and Luke.

Pressures from all three generations of the family, the kids, the parents, and the grandparents, through personal crises, cause the lids to blow off in different strengths and directions.

As he and Ally continue to feel distant, Paul rekindles an old friendship, but at a cost to Ava. Luke surprises everyone by getting a best friend. Jim and Jackie are forced to move.

Paul and Ally take a "family" vacation without the kids. Luke makes a decision about the future of his education and life with Maya.