Chester A. Riley considers himself a tolerant father. He believes in allowing his teenage daughter Babs to do whatever she pleases as long as what she does pleases him. And one of the things that definitely does not please Riley is Bab's persistent young boyfriend a certain young swain by the name of Simon Vanderhopper.  Riley has nothing against Simon except that he's a boy! Riley mistakenly believes that his daughter and her boyfriend are eloping on a motor launch wen Simon is merely taking Babs and Mrs Riley on a boat ride to Catalina. To make matters worse, Riley and Waldo have hidden themselves on the wrong boat, a boat belonging to two very attractive ladies!