The O'Brien family are new in town. An ordinary family - well, almost. Roy O' Brien is a little different - he's a cartoon! Miss Sheringham has organised a school charity drive and Roy is selected to collect public donations in a bucket. The fundraising is not going well when Roy notices a busker attracting a lot of attention and donations. He has a flash of entrepreneurial genius when he spots a beautiful electric guitar in a shop window. If he spent the money he had collected to buy the guitar, he could make so much more for charity by busking. What could possibly go wrong?