Paul and Ally rush to fly back from their holiday when they hear that Maya is giving birth five weeks early. Ava and Sunil try to help Luke step up and become a father, but everyone is in shock when complications set in.
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.
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 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.
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.
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.