When dysfunctional adult, Al Clancy, mistakenly agrees to mind his smart-ass 10-year-old nephew, Karl Clancy, for a week, his job and home are placed in jeopardy. In a bold bid to save Al's job, they steal his mam's camper-van, become best friends and embark on a criss-cross adventure putting up posters all over Ireland. When things go wrong and the lads get cranky, one of them...