Michael and Norman's sock-eating plants have developed a taste for orange juice and a remarkable ability to move themselves around on skateboards. Now that the sock-eaters have learned to travel, they are off on some wild adventures.
Norman is always fighting to keep his half of the bedroom spotless and free from the mess on Michael's half. Then the appearance of two giant plants that eat litter solves the problem for a short while.
The scientists at the Natural History Museum are very interested in Michael and Norman's sock-eating plants. But who would guess those plants would cause a near riot at the museum -- by getting in a tangle with a dinosaur!.
Michael and Norman have been given a deadline to get rid of their troublesome, sock-eating plants, and the race to save them leads the boys into their wackiest adventures ever.