Totally Spies! (2001) : 5x12

It's a bright, sunny day on the Mali-U campus. As Sam, Clover, Alex and Britney stroll across the quad, they suddenly hear a strange sound. "Woohp! Woohp!" To their utter shock and surprise, they look up to see a group of students doing what appears to be the officially sanctioned WOOHP workout routine! Incredulous, they ask what's going on. That's when Mandy and Mindy tell them: "Duh. It's only the latest workout craze!" When the girls tell Jerry what's going on, he's equally as surprised and concerned. In a b-story, with Britney being drafted back into the team again, Alex's jealousies return.