Xavier Riddle and the Secret Museum

I am Jonas Salk

Xavier, Yadina and Brad spend the morning shoveling snow off the museum steps so people will be able to visit safely, but are aghast to discover there's no hot chocolate reward for all their hard work! What should they do? There's only one thing... To the Secret Museum! Our heroes are sent back in time to meet someone who knew about hard work: Jonas Salk. They follow along as Jonas first helps his friends play baseball, then helps millions of kids all around the world by developing a vaccine for polio. Watching Jonas work hard to accomplish this amazing goal, and expecting nothing in return, helps our trio realize they don't need a reward for helping people get to the museum safely, because it feels good to help people.