Whilst excavating a tomb in South America, would-be archaeologist "Tad" discovers the most unlikely of objects - an Egyptian mummy. Derided by his rather academic colleagues, he is sent back to Chicago where his apartment is full of treasures that he has been obliged to keep under wraps - one such antiquity being an enthusiastically alive Aztec mummy called, well quite aptly - "Mummy". When his erstwhile colleagues discover this sarcophagus and return it to America, he - armed with what he thinks is a key, and assisted by his friend "Sara" manages to get into the museum, open the coffin and rel... Lue kokonaan.