Eleven-year old genius and kid-scientist Anne has invented and built her own amazing androids. Nick discovers Anne's secret junkyard laboratory and enlists the help of Shania to befriend Anne and her mechanical companions. Together they help solve Anne's scientific problems through real-life solutions.
In season four, the team bands together and uses scientific approaches to solve problems including: getting lost in the wilderness, dealing with a friend moving, building a robot for competition, and defending the junkyard from Ada's hostile takeover in an epic series finale.