The Radfords are facing a year like no other as they celebrate the birth of their 22nd baby Heidie just as the nation goes into lockdown. When the latest addition to the supersized family arrives home everyone has to help out.

After months off school due to the Covid-19 pandemic, the Radford kids return to school, with 11-year-old Max starting at a new high school. Dad, Noel, adopts a radical approach to device addiction.

There's another baby on the way but, for once, it's not Sue who's pregnant, but rather 18-year-old daughter Millie. Sister Chloe is put in charge of organising the baby-shower. Ten-year-old Tillie faces a crucial hospital visit.

With ten teenagers now living in the Radford house, their laziness is driving Mum, Sue, to take up DIY projects, leaving the house in utter chaos as they drag on. There is another addition to the family - a new puppy.