In Season 4, things move five years on from when Paul and Ally were on the verge of splitting up. The pair face their biggest parenting challenge as 18-year-old Luke drops a bombshell at Christmas dinner that changes everyone's lives forever. No longer in Luke's shadow, 16-year-old Ava experiences her own bombshell moment as she meets and immediately falls for the charismatic Holly, as Paul and Ally continue to try, fail and try again as they face these latest parenting challenges.
