The All-Ireland Traditional Music Competition attracts the best musicians from all over the country--and a few from beyond the shores of the Emerald Isle as well. As John Joe and his band prepare to capture the band trophy with their County Clare jigs and reels, Irishman Jimmy bends his Liverpudlians away from jazz toward the time-honoured strains of Celtic music. As the musicians make their way towards the competition, trouble rears its head for both sets of challengers: the Liverpool Shamrock Ceilidh Band and the defending champions from Clare, and at the heart of this adversity lie the vengeful interventions of two estranged brothers, Jimmy and John Joe.