One year ago, Detective Steve Fischer was injected with an experimental drug that turned him into young Stacey Chance. As Stacey struggles with her new life as a woman, a Chinese scientist kidnaps her and Steve's daughter Madison to experiment on them with his own version of the drug. This new version of the drug causes Stacey and Madison to become children again. While they search for a cure, they get a second chance at childhood. But danger lurks just around the corner...