In 1987, in Goiânia, two paper collectors find a radioactive capsule and sell it to the owner of a junkyard. Once the capsule is opened, more than 250 people end up contaminated by the substance called Cesium 137, being the biggest radiological accident in the history of Brazil.
Following the clues of a map, a boy and some adventurers go into the forest in search of treasure from the pioneers, and end up going back two centuries in time, in search of the legendary Minas dos Martírios.
