Tad is a celebrity archaeologist and adventurer just like his hero Max Mordon... in his dreams! In reality, Tad is a Chicago construction worker. One day, however, he is mistaken for a real professor and takes his place on a flight to Peru in search of the lost city of Paititi.

Tad dreams of becoming an archaeologist traveling the world, uncovering hidden secrets and lost treasure, but his job working construction keeps him daydreaming instead of exploring. The chance of a lifetime comes when he is invited to attend archaeologist Sara Lavrof's presentation of her latest discovery - the papyrus that proves the existence of the Necklace of Midas, the legendary King who turned everything he touched into solid gold.

Tad accidentally unleashes an ancient spell, endangering the lives of his friends Mummy, Jeff, and Belzoni. With everyone against him and only helped by Sara, he sets off on an adventure to end the Curse of the Mummy.