Cartoon, 25 minutes
"The Day Things Went Sour" is a YUM YUMS television special about six fun-loving animals who visit an amusement park, Yum Yum Fun Park, only to find that Sourpusses have snuck in and vandalized it the night before the park's opening day. They also steal the YUM YUMS' special candy-striped toolbox, so that repairs are impossible!
The plot thickens when the YUM YUMS take a perilous boat ride to garbage-strewn Sour City to find the missing toolbox. Along the way, they have to outwit a pack of scary sewer rats and a mean sewer gator. Children will love the combination of jokes, determination and magical wishes that enable the YUM YUMS to recapture the toolbox and escape back home.
Hanna Barbera Productions, Inc. (1989)