Inspired by the true story of Ireland's biggest cocaine seizure in 2007, the movie follows two teenage boys from Cork as they steal bicycles and ride off on a quest to find a missing bale of cocaine worth 7,000,000 euros.
The story itself is slight and runs out of steam long before the arrival of a nailgun-wielding drug dealer but the script sparkles and Murphy and Walley are stars in the making as small-time crooks and big-time charmers.
It's not funny enough to rise above its clumsy story, but it has something rare in movies of its type: a good heart, which it demonstrates in surprisingly sweet scenes between Conor and his mum (Hilary Rose).
It's the bromantic banter between the hapless, but touchingly steadfast heroes and the moments of bleakly bruising slapstick that make this impeccably paced saga so genial and enjoyable.