Xavier is upset to realize that his friend in Japan will never get to experience his family's amazing museum. Bringing it all the way across the world seems impossible. Unless... To the Secret Museum! Our heroes are sent back in time to meet someone who had a lot of seemingly impossible ideas: inventor Nikola Tesla. We watch in amazement as Nikola first thinks up the water wheel that could power his whole farm, then actually invents one that can harvest the energy of Niagara Falls to power an entire town! Xavier is inspired to keep thinking up ways to bring the museum to his friend because amazing things can happen when you think big.