Footprint takes a dizzying spin around the globe, witnessing population explosions, over-consumption, limited resources, and expert testimony about what a world straining at its limits can sustain. We spend time with indigenous health workers, activists, and the ordinary people in the Philippines, Mexico, Pakistan and Kenya. All of them challenge the idea that our world can continue to support the weight of humanity’s footprint on it. Footprint offers unprecedented access to the people on the ground who are challenging the status quo. It is time to ask critical questions about our shared future on the planet.