When a promising young boxer (Huntz Hall) is barred from competing in the Golden Gloves championship, his buddy Mugs (Leo Gorcey) takes his place and convinces the public he intends to throw the fight. But it's all a ruse for a crooked gambler and his pals who are trying to turn the good kids bad. This is the sixth installment in the fabled East Side Kids series, featuring several former actors from the Dead End Kids gang.