Howtoons returns with an all-new sci-fi DIY adventure! Celine and Tuck's parents put them to sleep for centuries to ride out the energy crisis -- but when they awake in the far future and Mom and Dad are missing, it's the kids who have to save the day! Celine and Tuck must explore a strange new Earth using their gadgeteering skills to create projects and experiments to survive hostile tribes and bizarre mechanized threats -- projects and experiments...