Deep beneath Australia’s azure waters, an ancient ecosystem is sending us desperate signals. Our Blue Heart embarks on an unprecedented journey across the nation’s marine sanctuaries, where First Nations Elders, cutting-edge scientists, and local experts converge to decode these urgent messages from our planet’s largest life-support system.

In the pristine remoteness of the Coral Sea Meriam Islanders guide scientists through sacred waters, unveiling both devastating loss and unexpected resilience. Beneath Tasmania’s rapidly warming seas marine scientists race against rising temperatures to prevent the extinction of remarkable species found nowhere else on Earth. Meanwhile in Western Australia’s Recherche archipelago, the devastating impact of our plastic legacy unfolds as once- thriving seabird colonies return in diminishing numbers, their bodies bearing witness to humanity’s most pervasive assault on nature.

The film weaves together three powerful narratives that expose both the beauty and fragility of our marine world.

Through stunning natural history cinematography and deeply personal narratives, Our Blue Heart reveals the profound connection between ocean and human survival. As we witness groundbreaking collaborations between Indigenous knowledge systems and contemporary science, a powerful vision emerges. With Australia positioned to lead the world in marine protection, this pivotal story shows how combining millennia of wisdom with cutting-edge conservation could forge a new path forward.

In an age of unprecedented environmental change, one message resonates above all: our future and the ocean’s destiny are inexorably intertwined.

The time for action is now.