The fourth episode ‘It’s Too Late For Sirene’ is dedicated to the people of Minas Gerais, Brazil an their heritage. On November 5th 2015, the collapse of the dam located in Mariana-Bento Rodrigues region of Minas Gerais State which is used to collect waste from iron mines collapsed and caused a disaster that severely harmed living creatures and damaged natural and cultural heritage.

The episode shows the tangible and intangible values affected by the disaster and the efforts given by local users and professionals during the rehabilitation process.

This episode includes interviews with the chief Gao of the Krenak Tribe who had their all-natural resources poisoned and others who gave support to the safeguarding of historical and natural heritage.