An unexpected visit from great aunt Gloria - mum's harshest critic - means emergency plans are needed. Mum has never told her about her and dad splitting up! Millie tells mum this is the perfect opportunity to come clean and tell the truth, but mum loses her nerve - and even dad arrives to keep up the pretence. It looks like they might get away with it - but how will they explain the presence of Mike and Craig? Meanwhile Amber, Fran and Jake try to have a fun afternoon without dad - but find it isn't as easy as it sounds.