"Stop Lazlo!" is the first segment of the twenty-eighth episode of Mickey and the Roadster Racers.
Ludwig Von Drake has a cold and lends Mickey the Smarty Hat to help fix the roadsters. When Commander Heist tries to steal Von Drake's Smarty Hat as part of a plot to make all of the hot dogs in Hot Dog Hills disappear with his Sonic Hot Dog Eliminator and target the secret recipe for them, Heist's cat Lazlo gets in the way and gets the Smarty Hat on him while planning to do the criminal action for himself. Now Commander Heist must work with Mickey, Donald, and Goofy to get the Smarty Hat off of Lazlo.