Two teenage boys cycle 160 km on stolen bikes pursued by police to find a missing bale of cocaine worth 7 million euro. Set around the real event of Ireland's biggest cocaine seizure in 2007 of 440 million euro.
Friendship, loyalty, laughter and lots of mischief bring best pals Conor MacSweeney and Jock O'Keeffe into ongoing conflict with their school headmaster, Principal Barry Walsh. Getting caught up in the chaos is Conor's long-suffering mother Mairead. A not-so-clever plan to earn some extra cash backfires, bringing the lads head to head with Sergeant Healy, who has been hot on their heels for some time and is determined to catch them up to no good. They also may have been caught in the act by Principal Walsh's two daughters, Siobhan and Linda, so the lads need to turn on the charm to persuade the girls not to spill the beans, which only serves to further irritate Principal Walsh. Local town bully Billy Murphy enters the fray as the lads have to approach him to avoid getting caught, leading to a hilarious stand-off. Conor and Jock have to rely on the strength of their friendship to see them through the clashes with the formidable team of Principal Walsh and Sergeant Healy, but not without the help of Mairead, who is unwittingly dragged into the proceedings to support her son and his friend.
Conor and Jock’s friendships with Principal Walsh’s daughters Linda and Siobhan intensify, causing awkward tension between the lads, the Principal, and the girls themselves. As they spend more time with Siobhan and Linda, both lads are becoming increasingly aware of complicated feelings that are more noticeable with each meeting. Conor is anxious to try progress things with Linda, so puts his trust in Jock’s strategy to get things moving, which involves a more direct approach than Conor expected. Maybe a touch of jealousy is what's needed to kick things off? This method leads to a comical encounter between Conor and Linda on the local park bench with several onlookers. Siobhan meanwhile is getting more than a little frustrated with Jock’s antics – he’s not the kind of lad who wants to be tied down, so his freewheeling approach to girls isn’t going to be compromised. After the recent showdown between the lads, Mairead and the team of Principal Walsh, and Sergeant Healy, Healy is feeling a touch of guilt and takes it upon himself to try make amends for what happened, with uncomfortable approaches leaving Mairead and Conor confused. Deciding to take a leap of faith with Linda, Conor and Jock crash a Walsh family barbecue. Principal Walsh’s wife Orla is intent on her husband giving the lads a chance - they can’t be all that bad, can they? Despite everyone's best intentions, things get out of hand fairly quickly, with a show-stopping spectacle getting hilariously more and more heated, leaving everyone to consider what a mistake it is to rush to make judgements about others.
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 man.
Conor takes on a job in the fishmonger's, 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 Connor.
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.
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.