Rumours swirl around Finglas that Agnes has won the lotto jackpot, but a DNA test and the surprise return visit of Cathy's old friend leaves Agnes questioning her past.

All Mrs Brown wants is a nice, peaceful Christmas, but the family have other ideas! Cathy's decided to cook Christmas dinner for the first time ever, a sentimental decoration has gone missing and a surprise dinner guest all have the potential to ruin Agnes' quiet Christmas.