John, Max, and Shawn have a real twister of a mystery on their hands. They get caught-up in a whirlwind of danger and intrigue while trying discover why a manuscript about tornadoes was stolen from a local museum. They learn that the manuscript, previously thought to be worthless, is of great scientific value. Looking for the thief, they put their own lives at risk, enduring headlong attacks, captivity in a burning building, and close encounters with real tornadoes. Along the way, they learn a valuable lesson: that things are not always as they appear to be.