Millie’s parents have just broken up and she and her sister Lauren are spending time at both Mum’s house and Dad’s flat. Millie soon sees the advantage to this family set-up as she has two chances to celebrate Christmas, two birthdays and two bedrooms. Problems arise however after her parents find new partners.
It's New Year's Eve, Millie's stuck in the loft, Craig is humiliated, and the family are upset because they think they've missed midnight.
Millie seeks a new friend and is unaware how much she is hurting Fran, Jake and potential buddy Jessie in the process.
Confident cousin Leo moves into Craig's old room. Lauren tries to bring him down, and Millie tries to rescue him.
Lauren's social media usage is dangerously out of hand. With Millie's help she deletes herself, but craves what she's missing.
Millie is afraid that Sharon and Mike arguing means they'll split up. She sets herself up as peacemaker for them.
Jessie is hinting that there's trouble at home, so Millie draws on her own experience to help.
Millie is anonymously blogging advice to school parents, and Leo tries to teach Declan to be cool.
There is family drama as Leo is cast as Juliet and Lauren as the Friar. The girls realise they need to help Leo find his inner Juliet.
Lauren's confidence takes a knock when she's turned down for a photography course. Millie boosts her confidence but the results are uncomfortable.
Exchange student Catalina is unhappy. The family try to cheer her up to no avail. Millie and Fran double-date Javier and Ollie.
Sharon and Mike are persuaded to accept a weekend wedding invite. The kids and Ollie promise to be responsible adults.
Lauren and Leo are packing up to leave, and Tony and Sharon are enthusiastically planning the summer for Millie.
