Set in a 1910 circus, young Charlotte travels from city to city with her acrobat family who perform on the Trapeze. With her training almost complete, she already takes on the daring Blindfolded trick. Despite never having successfully completed the trick, Charlotte is determined to do the trick at the upcoming performance. But worries about that take a back seat when Charlotte learns about the circus potentially going out of business. She's determined to find the truth about whether or not she- and her daring Trapeze act- are the secret to saving the circus. But to do that, she will have to get into the Forbidden Train Car Z.