 Fred hears some noise at Barney s place. He noticed he is building some kind of "egg beater". But Barney tells him he is inventing a flying machine and Fred have doubts whether this thing would 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 faints a general disorder in front of the wives and Barney, who offers to stay with him. And Barney proposes to Fred to fly to the Bowling Alley with an improved Flinstone Flyer. It works this time, but little they know the Bowling alley is next to the Opera House...