Chuck Yeager finally breaks the sound barrier while piloting an aircraft. The people on the ground initially believe that the sonic boom was Chuck crashing but soon realize that Chuck was successful in his attempt to break the sound barrier.
Larry Daley encounters Amelia Earhart as he tries to get away from a tribe of angry men. They quickly get acquainted, and she has a chance to briefly tell him about herself and her achievements.
The StoryBots learn more about how sound recognition sends signals to the brain. Ears receive sound waves and have to interpret them to understand what is going on around us.