The premise of the book is that Jake's class is going on a field trip to a planet in the Gamma Quadrant. The planet is safe for kids, as it only has plants on it. One type of plant screams and runs around, while another type moves and attacks people with tentacle vines. That sounds pretty unsafe for kids! But those are the only two plants you need to look out for, so I guess it's okay.
As our heroes approach the planet, they are attacked by a Cardassian ship. They are forced to make a crash landing, and the pilot is badly injured. So now they're stranded on an alien planet with hostile Cardassians and no way of contacting people back home.
They make shelter in a cave, and something starts robbing them. First, it steals all the electronics from the ship, then all the electronics have in the shelter. They set a trap, and it turns out the thieves are furry trolls, about three feet tall. They're actually Cyborg Trolls; they have computer parts built into them. Talk in Yoda speak, they do. Friendly are they. The situation they explain.
The Cyborg Trolls were modified by the Cardassians to be spies, as they can travel through force fields and bypass security measures. They are stealing electronics, because they think their newborn children need them. Our heroes team up with the Cyborg Trolls to hijack the Cardassian spaceship and return home.
This was also a good book. The secondary characters were particularly well-done. I wish Jake had a set of interesting secondary characters that he interacted with on the show! Did any of the students in his class have names?
Unlike the previous books, this one has a notice saying the book series takes place during seasons one and two of the TV show. Oh, so that's how they got around the problem of "main character of the books becomes secondary character on the show"!