Tadeo Jones has always wanted to become an adventurous and famous archeologist but instead he spends his days daydreaming between the cranes and cement on the building site where he works. The chance to fulfi l his dreams comes along when his friend, a celebrated archeologist, receives a mysterious stone tablet: the key to the route to the Lost City of Paititi and its legendary treasure. Just as he is about to start out on his journey, the archeologist suffers an unfortunate accident and Tadeo must take his place on the expedition. With the help of an intrepid archeologist, a parrot with a strong character, a strange guide with a surprising multipurpose overcoat and Tadeo's inseparable dog, he will undertake a risky adventure to save the Lost City from an evil band of treasure hunters.