Totally Spies! (2002)

S4E26 Alex Gets Schooled

After accidentally receiving Mandy's report card filled with Fs, Alex is sent to Dorsal Academy in England. Upon arrival, she discovers that the principal, Sharminston, has a bizarre scheme to transform all the students into dolphins. Meanwhile, Sam and Clover come to Alex's rescue, only to learn that her actual grades were As and Bs, while Mandy, not Alex, received the failing marks. In a separate storyline, Jerry moves into the spies' home after his place is overrun by bugs.