Professor Frizzle's kid sister Fiona might be the new teacher at Walkerville Elementary, but she's got the same old motto: take chances, make mistakes, and get messy! She decides to take the class camping, but come night fall their tent grounds are pitch black.
When a sudden storm rolls in and the scouts lose their way in the woods, will they be able to use their new skills and work together as one team to find their way back to camp? Find out in this exciting fourth adventure in the Bobs and Tweets series!