Fred hears some noise at Barney's place. He notices he is building some kind of "egg beater". But Barney tells him he is inventing a flying machine and Fred has doubts whether this thing will really work. After seeing Barney successfully riding the machine, he proposes to name it the Flintstone Flyer, but since he's too big, the machine won't work for him. Afterwards, hearing that this is opera night from Wilma as he wants to go bowling, Fred thinks of a plan to stay home. He feigns a general disorder in front of the wives and Barney, who offers to stay with him. Barney proposes Fred flies to the bowling alley on an improved Flinstone Flyer. It works this time, but little do they know the bowling alley is next to the opera house. Written by RealLiveClaude