The Magic School Bus Season 3 Episode 3 - The Magic School Bus Spins a Web Episode Title:The Magic School Bus Spins a Web.Episode Description:The class has gone to a drive-in movie, where the movie featured is Stand by Your Mantis (1953),(A Parody of The Deadly Mantis) about General Araneus, who is attempting to destroy a giant praying mantis. Carlos and Phoebe aren't enjoying it. Carlos doesn't like insects and Phoebe is upset and declares that if she were in that movie, she'd trap the mantis, and take it somewhere else and free it. Naturally, this gives Ms. Frizzle an idea. So she drives the bus into the movie. General Araneus takes over the bus, kidnaps Liz, and pushes a button that makes the class go back out of the movie and shrink. He wants to use Liz as bait for the praying mantis. Outside the movie, the class encounter spiders a lot, and when Liz pushes a button that pulls them back in the movie, they apply what they've learned about spiders to stop the General from using Liz as praying mantis bait.