Felix receives an offer to leave Lakewood High and attend a school for geniuses. Meanwhile, Jake finally gets up the courage to ask Haley for a date, but a new girl arrives at Lakewood and tricks him into asking her out instead.
When an old Science Fair rival from Tulsa uses a monster to power a robot butler that goes berserk, Kirby must go into action to keep it from destroying her, the Troop, and all of Lakewood High.
A monster switches places with Hayley and finds out it's easier to be a monster than a teenage girl. Kirby's new combat trainer, The Hammer, beats Kirby down until Kirby can stand up for himself.
Etienne causes damage at the science fair, and then he puts on a bad-boy front around Cadence. Elsewhere, Jake pretends a Doom Hound is just a loudly barking dog.
After several attacks on the school from a Flaying Pincer Mole, the Troop is forced to track the monster to its lair. Unfortunately for them, the only way to find where the mole is hiding is to team up with the Sniffer, a particularly difficult monster. Noah Munck guest stars as the Sniffer.
Cecilia, an Eris Fairie arrives and mistakes Etienne for Felix and they become a couple. Cecilia's ex-boyfriend, Tod comes from the monster world to get her back and get rid of Etienne. Meanwhile, Jake tries telling Hayley he has a crush on her.
During a road trip with Mr. Stockley for Driver's Education, Jake and Hayley get sidetracked by an emergency distress signal from another Troop team. Meanwhile, Kirby gets help from Cadence in his drive to best another student in the competition for the new position of "Green Czar."