While searching for artifacts in South America, a character named Tad unearths something unexpected: an Egyptian mummy. Dismissed by his more scholarly peers, he’s sent to Chicago, where he's been storing various treasures – including a lively Aztec mummy called "Mummy." When those colleagues track down the sarcophagus and bring it back to America, Tad, along with his friend Sara, tries to enter the museum using what…