Daisy and Sammy moved to a farm in the country with their mother and father. The children weren't happy leaving all their friends behind. However, when they found an old tandem bike in the barn, their father said he would mend it for them.That's when life began to get very interesting, if not a little scary at times.This mystery adventure gets more mysterious, as the two children embark on an adventurous journey into the unknown. They could not believe what was happening to them.