Conor and Jock have grown older, but not any wiser. A madcap trip sees them on the wrong side of the law as they're given a free holiday to Colombia from a Spanish-speaking fella.
Conor takes on a job in the fishmongers, still desperate to get back with his former flame Linda. Conor's arch-enemy, Gavin Madigan, continues to taunt him.
Conor is becoming an increasing nuisance in Healy and Mairéad's house, and when Healy shares that he's going on a fishing trip to where he grew up, Mairead insists he bring Conor.
Jock and Siobhán's daughter Star is turning six and a birthday party is being organised. Orla Walsh however is having her kitchen redone, and asks Mairéad to host the party.
Six-year-old Star accidentally discovers the Billy Murphy mask, infuriating Sgt Healy. Conor and Jock's genius plan to help Jock and Star have a video call is rumbled by Linda.
Mairead, Sgt Healy and Conor are preparing for the imminent new arrival at Christmastime. Mairéad discovers a firearm in the house that Conor is holding for a friend.