Following the example set by Eddie Haskell (Ken Osmond), Wally (Tony Dow) combs his hair into a "cool" ducktail. Ward (Hugh Beaumont) and June (Barbara Billingsley) attempt to apply reverse psychology to persuade Wally to drop his new 'do, but he doesn't take the bait. The situation reaches the crisis stage when Beaver (Jerry Mathers) emerges from the bathroom sporting the same hipster hairstyle. (Listen for that "authentic" rock & roll music in the background!) ~ Hal Erickson, Rovi