A time-traveling tech adventure that takes kids through the centuries using modern technology as their tour guide. WHAT WOULD YOU DO... if a time traveler landed on your doorstep? In Leonardo and the Time Travelers , Jack and Nick are in Silicon Valley for a summer technology class, when they discover a secret time travel app. They bring back the world's first time traveler, Leonardo da Vinci, and adventure ensues! Joined by Jack's sister Poppy, they solve problems, meet other time travelers, and have a summer they will never forget.