One day, Coco and Doodle discover an old and peculiar contraption hidden in the attic of their owner's house – a time-traveling machine! They accidentally activate it and find themselves whisked away to different eras in history. In each time period, they encounter historical figures and must find a way to return to their own time. Along the way, they witness historical events, help famous figures with their dilemmas, and even prevent a potential catastrophe. Their journey is filled with excitement, danger, and historical learning. Throughout the adventure, Coco and Doodle must be careful not to disrupt the timeline, all while trying to find a way back home.