Futureshock! (S04E02)
While practicing cheerleading, Mandy breaks a nail and decides to fill the time by working as a TV reporter until it grows back. Meanwhile, the spies stumble upon a gadget while cleaning Jerry's office, which inadvertently sends them two decades into the future. There, they discover the shocking reality that Mandy has taken over Beverly Hills and is on a mission to 'Mandify' everyone. Joining forces with their future selves, the girls must thwart her plans to prevent this future from becoming a reality. They use the time machine to return to their present and recreate nails for Clover's school wardrobe. Mandy sneaks in, takes the new nails, and gets her normal look back, prompting her to quit her TV job. In a subplot, Mandy grapples with her frustration over her broken nails. Villain: Mandy.