With the festive season fast approaching, Agnes Brown finds herself facing her busiest Christmas yet. Spiritual son Trevor is visiting from the missions, grandson Bono is sleeping over on Christmas Eve, and there are three new faces to feed on Christmas Day now that Agnes’s youngest son Dermot is the father of triplets. Visiting, priest Father Damien announces that the Finglas Nativity play has been cancelled. Agnes vows to stage a Nativity play of her own in the local community centre. She meets stiff resistance from Father Damien, who is wary of meddling mothers like Agnes and refuses to ask permission from the Bishop. Cathy is furious when she discovers that Agnes has been reading her mail and decides to play a prank on her interfering mother. Convinced that she has been entered into a ‘Best Christmas Mother’ competition, Agnes starts being unusually nice to everyone...