Água Rasa navigates the Paraopeba River, contaminated by toxic mud from mining waste due to the collapse of the Vale dam in Brumadinho-MG, running from the rupture site to its mouth, at the Três Marias Dam. Through the wisdom of Seu Pedro, Água Rasa discovers, in his bamboo pole, the power to listen and connect with the river, with the surrounding nature and with riverside spirits.