Agnes Brown has had enough hassle with Christmas trees to last a lifetime, so this year she refuses to have one. But with Grandad's health a worry for everyone, is there something else missing this Christmas apart from just the tree?

It's 25 years since the death of her husband "Redser" whose former best friend woos Mrs. Brown as she plans a memorial service. Rory is feeling bored in his marriage to Dino, and Mark confronts Buster over a watch stolen from a customer.

Grandad is convinced that the house is haunted. Cathy has a new internet date, Agnes has been given a special Christmas tree to cheer her up and Rory has had plastic surgery.

It's the festive season once again in the Brown household, and Father Damian has organised a Christmas decoration contest. Agnes is keen to enter, especially as it might mean getting one over her old nemesis Hilliary Nicholson. But she is soon distracted when Dermot and Buster give Agnes a 'Wi-Fi assistant', and she has trouble figuring out what to do with it. Meanwhile, Cathy is up for a promotion at work, and Dino and Rory give Buster a full makeover so he can look his best for an internet date. It's bound to go well - as long as she looks like she does in her photo.