While visiting Salem, the Tennysons encounter Charmcaster. She casts a spell, and manages to capture Ben in a field, but Gwen interferes and gets caught in field, Charmcaster and Gwen switch bodies. While Charmcaster(as Gwen) gathers ingredients for another transference spell, Gwen (as Charmcaster) gets sent to juvenile hall. Gwen has to escape and get her family to realize a switch has taken place. Written by
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[after Cannonbolt saves Grandpa Max
All right! Nice job, Gwen!
[Omnitrix times out and changes to Ben
Grandpa, it's *me*. Ben!
Okay, that's it! I give up!