The Secret World of Alex Mack (1994)

S1E6 Science Fair

Annie's science project has made it to the finals of the prestigious science fair at the Paradise Valley Chemical Plant, and the entire Mack family is excited to support her on Saturday—except for Alex. She's tired of seeing Annie succeed and dreads going to the chemical plant, which she considers the worst possible location. It's teeming with plant spies who are always on the lookout for "the kid," making her apprehensive about the day ahead.