S21E17 American History X-cellent
When Homer, Lenny and Carl get drunk at Mr. Burns' picnic, the police are forced to come to take them away. But, when Lou recognizes a priceless painting on the wall, the careless billionaire is sent to prison where a strong inmate releases his evilness. Meanwhile, Smithers becomes boss of the Power Plant and soon becomes worse than Burns. Homer, Lenny and Carl then try to bust him out. Also, Bart and Lisa try their to take care of the last ant from their ant farm.