When Master Kim announces that JoJo is ready to take the test for her yellow belt promotion, butterflies start fluttering in her stomach. JoJo loves Tae Kwon Do, but can she really do a perfect flying side kick and break a board in two?

And, as if the test isn't enough, the creepy tree in JoJo's front yard is really starting to worry her. Sometimes JoJo thinks that tree will slip right through her window, like a sneaky bandit.

JoJo's grandaddy, her mom, and her friend P.J. offer advice and words of wisdom, but ultimately, JoJo discovers that she must rely on her own strength and growing self-confidence to triumph in class and in life.