Grandpus installs an unknown device at Fixie School. As a joke, Fire convinces Toola that it’s a time machine. Toola is very nervous about an upcoming exam at school and so her Fixie classmates offer to use the time machine to send her to “tomorrow” so she can rehearse taking the test. The Fixie kids “send” Toola to the future, pretending they are really sitting in class on the day of the test. The only thing odd is that Simka is administering the test instead of Grandpus. When Toola asks why, she is told that Grandpus got hurt when Toola dropped a bolt on his head the day before. Toola quiets her nerves and gets through the test. Simka announces that Toola actually had the best result in the class. A confident Toola returns back to the “present” in the time machine and rushes to give Grandpus a helmet to protect his head from getting hit. Grandpus is completely confused by her action. The next day Toola arrives to take the real test and is relieved to find that Grandpus did not get hurt – the helmet must have worked! At first she is nervous about the test but then calms down remembering how well she did at the rehearsal. She gets all of the answers right except one, identifying that mysterious device that Grandpus had installed at Fixie School – she answered that it was a time machine, but Grandpus reveals it is simply a timer for automatically watering flowers.