Wicked Science (2004)

S2E16 Verity from the Black Lagoon

Verity conducts an experiment near a serene lake, but things take a disastrous turn when her project backfires. As a result, she begins to undergo a terrifying transformation into an amphibious creature. Struggling with her new identity, Verity must confront the challenges and fears that come with her metamorphosis, all while seeking a way to reverse the effects of her ill-fated experiment.