History is now in the hands of two orphans, a border collie, and a depressed inventor... ​For as long as Johnny and Ella have known him, Shawn has been that odd but sad man who lives in the shed at the orphanage run by his iron-fisted sister. Every day, the kids watch from the windows as he walks the dog, fixes things, and takes his sister’s belittling with only a sigh. ​Everything changes the night Johnny and Ella decide to investigate lights flashing from the shed. The night they discover Shawn’s time machine, which sends them all to medieval England – to a time of mighty castles, jousting tournaments, and wild animals. But when they witness the injustice of a greedy lord and his champion knight, a simple jump to the past turns into a seemingly impossible quest to save the lives of innocent villagers – as well as their own. All complicated by Shawn’s odd behavior and terrible manners, leaving it up to Johnny and Ella to teach him how to behave properly. ​With a combination of modern technology, ingenuity, and trickery, can two orphans, a dog, and a sad inventor change the course of history?