The Famous Jett Jackson (1998)

S3E8 Extra Credit

Cubby makes the bold choice to return to high school, but he feels overwhelmed with anxiety. When Jett and Kayla inquire about his nerves, he shares memories of his past as the nerdy Marvin. However, he's ecstatic when he ends up in detention after instigating a food fight. Meanwhile, Silverstone faces a critical mission to prevent an assassination attempt on the President of the United States.