It's the most wonderful time of the year, and Mairéad, Sgt Healy and Conor are preparing for the imminent new arrival, with Conor wanting only the best for his mother. Conor is still a novice at domestic housework, including washing, so Mairéad decides to give him lessons, clearing out his wash basket thoroughly – only to discover a handgun in the basket.

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.

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.

There's a new Fake Billy Murphy in town, and he steals Conor's most prized possession – the engraved lighter given to him by his best friend Jock.

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 Connor.

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 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.