My Life as a Teenage Robot

Jenny is unwittingly programmed for evil against her will by a spoiled child named Todd Sweeney, who uses her to ruin the holidays for all of Tremorton. When she returns to normal, she discovers that the entire town has turned against her, and nobody believes her pleas of innocence, except for the one person that worships her like a goddess - Sheldon. Todd, however, still intends to use her to ruin the year's biggest holiday—Christmas.