In 1971, two oil tankers violently collided off the San Francisco Coast spilling millions of gallons of crude oil creating an environmental disaster. Against all odds, trucking and construction entrepreneur Charlie Walker was able to secure one of the most lucrative contracts to clean the coastline that threatened much of the San Francisco Bay. With only three trucks, an incredible work ethic and a whole lot of heart, the film recounts the racial discrimination Walker endured as he tries to save the coastline all while fighting institutional racism from the very company that hired him in the first place.