Lucky is tricked into missing his own wedding again and has to make $25,000 so her father allows him to marry Margaret. He and business partner Pop go to New York where they run into dancing instructor Penny. She and Lucky form a successful dance partnership, but romance is blighted by his old attachment to Margaret and hers for Ricky Romero.

This wonderfully entertaining dance documentary tells the extraordinary story of how Irish dance developed over centuries from a traditional peasant dance to a form that has taken the world by storm and is enjoyed by tens of millions. The film shows how Irish dance has both been influenced by and influenced the dance of many cultures and how it developed as an expression of resistance.