It may be St Patrick's Day, but the Moones are having a different kind of party - Fidelma's wedding!
As tensions run high with the heavily- pregnant bride calling the shots, Martin takes his life in his hands when a Coco Pop disaster strikes the all-important dress. But what will clean the dress!? A Martin and Sean-shaped plan springs into action.
As Liam begrudgingly hands Fidelma over to Dessie at the altar, their baby decides to make an early entrance, sparking an unusual horse-drawn hospital dash through the Boyle St Patrick's Day parade.
Later, Martin is left to become host with the most, treating his new Traveller friends to a right royal knees-up at the reception.