"Thunder Muffin" is an episode of Special Agent Oso.
Wolfie trains Oso to repair the new Shutterbug control computer. Oso tries remembering how to put the computer chips in properly when Paw Pilot calls in a special alert after he puts the computer chips into the board all at once and makes the computer overload and go haywire, causing all the Shutterbugs to fly around. A girl named Sophie and her mom have baked some carrot muffins for a school bake sale. They are about to put on the frosting and raisins when Sophie's mom gets a phone call. Sophie has trouble preparing the muffins. So Oso decides to teach Sophie how to get the muffins ready for the bake sale before she and her mom have to leave for school.
- The episode's title is a reference to the James Bond film Thunderball.
- "Thanks to you. This assignment was...SWEET!"