Martin Freeman and Daisy Haggard reprise their roles as parents Paul and Ally, and they are joined by new cast members Oscar Kennedy (Wreck, Ladhood), who takes on the role of their now 18-year-old son Luke, and Zoë Athena, who portrays their 16-year-old daughter Ava.
The story picks up five years after the dramatic events of the third season, with the Worsley family still grappling with the aftermath. Paul and Ally find themselves on the verge of a breakup, while Paul's parents Jim (Alun Armstrong) and Jackie (Joanna Bacon) face their own internal struggles. Meanwhile, Luke embarks on a new relationship, and Ava navigates the complexities of repairing an old one. As the fourth season of Breeders unfolds, Paul and Ally are confronted with the biggest parenting challenge they have ever faced when 18-year-old Luke drops a bombshell during a Christmas dinner, forever altering the lives of everyone involved. Additionally, Ava experiences her own life-altering moment as she meets the captivating Holly (Jessie Williams) and falls head over heels. Throughout these trials, Paul and Ally continue to navigate the ups and downs of parenting, persisting in their efforts despite the inevitable failures. They also find themselves providing support to the increasingly troubled Jim and Jackie.
Prepare for an emotionally charged and compelling final season as Breeders delves into the intricate dynamics of family, love, and the challenges of parenthood.