Watermark brings together diverse stories from around the globe about our relationship with water. From the massive floating abalone farms off China's Fujian coast to the water-intensive leather tanneries of Dhaka and the barren desert delta where the Colorado River no longer reaches the ocean, this documentary explores the ways we are drawn to water, what we learn from it, how we use it, and the consequences of that use. Featuring interviews with scientists who drill ice cores two kilometers deep into the Greenland Ice Sheet and travel through the watersheds of Northern British Columbia, this film shows water as a terraforming element and the scale of its reach, as well as the magnitude of our need and use.