There’s a big surprise in store for Mr. Sparks: He will be receiving the “Hero Teacher of the Year” award! His heroic students want to make everything special for the big celebration, and that includes making a cake. But, will Sparks’ Crew be able to keep the party a surprise while they figure out the right mixture for the cake batter? / Invisigirl (a former student) likes to use her invisibility to play jokes, but a joke has unintended consequences when she makes a cake invisible, and then can’t find it! The team tries to track it down via their sense of smell, but will it be enough to find the cake?
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