When her microchip runs down, Rosie the Robot becomes a mechanical klutz and runs away, and the whole Jetson family, fearing the scrap heap, launch a search to find Rosie.
(Review from my 7 year old) My favorite part of the book was when Rosie got stuck in the junkyard and she was about to get crushed into scrap metal by the compactor. Rosie didn't get crushed because the whole Jetson family pulled her out and they replaced her new cylinder.