DarkBat, a.k.a. Sniffles, helps a gang of mice who have been forced out of their homes by Sylvester, Claude and Pete Puma.

When Blacque Jacque Shellacque destroys Minnesota Rats' cheese shop, Darkbat seeks vengeance.

When the mice have their juice stand destroyed by Yosemite Sam, they call on Darkbat to save the day.