In the heart of the Brazilian backlands, Agreste tells the story of Etevaldo, a nomadic and reserved rural worker who carries a dark secret. When he meets Maria, a free-spirited young woman promised in marriage to an influential man from the neighborhood, the two fall deeply in love. Forced to flee due to the imminent wedding and the threats they face, they are taken in by Valda, a religious woman who sees Maria as her own daughter. While they try to find refuge, the arrival of Ribamar, the local sheriff's nephew, intensifies the tension. He is investigating an alleged theft, and his investigations begin to reveal Etevaldo's past, which fuels the hatred of the local community. Amid chaos, love and the struggle for survival challenge Etevaldo and Maria, testing secrets, betrayals, and a growing pressure from a society that does not accept their union.

Helena is the daughter of rancher Sinval and the sister of João Donato, a renowned international rodeo champion. Her dream is to become a top female rodeo rider, despite her father’s objections, so she divides her time between secret riding practice and her work as a doctor in Barretos.

Between two families marked by betrayal and obsession—the Nogueiras and the Torres—forces from the spiritual realm work to lead each character to a reckoning with their own destiny.