Sean (O'Dowd) is the imaginary friend of 10-year-old Martin Moone, the youngest child of a family living in a sma@生死连电视剧@ll town in Ireland. Martin has a unique perspective on life aided by an imaginary friend. His imagination comes into play both in his childish drawings, which come alive throu@钟丽缇 晚娘@gh animation, and in the ridiculous schemes he comes up with, against Sean's better judgement. With Sean's help, Martin negotiates life as the youngest in a chaotic, scatter-brained family.