Can U Save the Day?

B is an awfully boastful bloke and when he and the rest of the alphabet get together, he can't help but tease the vowels about their small numbers. So the vowels begin to take off, one by one. The consonants--and the rest of the farm--see just how important vowels really are. With disaster looming and B seeing the error of his ways, can U save the day and set the alphabet right again?