Gwen Grayson (Mary Elizabeth Winstead) is actually Sue Tenny, aka supervillain 'Royal Pain.' She is only showing an interest in Will Stronghold (Michael Angarano) as part of an overall scheme to retrieve her weapon, The Pacifier, that Will's dad (Kurt Russell) took from her a generation ago. She successfully tricks Will, and at the homecoming dance, reverts all of the heroes of Sky High to babies so that she can re-raise them all as supervillains. Will and the "sidekicks," however, team up to defeat Gwen and her gang. In the end, Principal Powers (Lynda Carter) is seen with the delinquents in the detention room, wondering how she'll deal with them, and saying, "I'm not Wonder Woman, you know."
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