A Couple of Coo-Coos: Mr. Wilson brings home a few carrier pigeons for the purpose of racing them. He and Dennis take one on an outing to see if she can find the way back to his house and the mission becomes for real after Dennis locks them out of George's car with the keys still inside. The Cloneheads: Dennis gets into PeeBee's latest invention, a clone booth, and it makes four duplicates of him. Nothing but the Tooth: Joey needs to have a tooth pulled out, but is afraid of the dentist. (thetvdb.com)