Exchange student Catalina is unhappy. The family try to cheer her up to no avail. Millie and Fran double date with Javier and Ollie but events take a turn in an unexpected way.

Mum and Mike are persuaded to accept a weekend wedding invite. The kids and Ollie promise to be responsible adults, but is the trust misplaced? Fran thinks Franma is online dating.

Lauren and Leo are packing up to leave, dad and mum are separately and enthusiastically planning the summer for Millie, but should she apply for what she really wants to do?