The Sweathogs go on a field trip to a museum and meet its mysterious, superstitious curator. In the process, they all get locked in a tomb of a mummy which supposedly holds a curse.

When the school arranges free medical checkups Gabe must confront his discomfort of going to the doctor.

Julie's sister from Nebraska visits and enrolls at Buchanan. She wants to be in Gabe's class and develops a fondness for Epstein...much to Julie's dismay.