In 2020, Homero Gómez Gonzalez, known as "The Guardian" for his endless work as an environmentalist and his efforts to protect the monarch butterfly sanctuary in Michoacán, was found dead. Four years after his death, with the case still unresolved, this documentary brings together testimonies from family and friends who knew Homero, as well as journalists, experts, and authorities who explore the network of political, commercial, and criminal interests that threatened both Homero and the monarch butterflies.
