In "Only on Earth", a harrowing documentary film, director Robin Petré takes viewers on an immersive journey into southern Galicia's treacherous wildfire zones, where humans and animals alike struggle to cope amidst the hottest, driest summer on record. The film follows four individuals - a cowboy, a veterinarian, a firefighter, and a farming family - as they fight to protect their homes, traditions, and environment from the devastating impact of wildfires. Through their stories, Petré sheds light on the vital role of native wild horses in mitigating wildfire damage, revealing the fragile beauty and brutal reality of life in one of Europe's most vulnerable regions.