Watch Full Movie Online. On March 24, 1989, the supertanker Exxon Valdez ran aground in the pristine waters of Alaska's Prince William Sound, spilling 11 million gallons of crude oil. Jean-Michel Cousteau, son of Jacques Cousteau, takes us on a voyage to investigate first-hand the devastating impact of the U.S.'s largest oil spill. Amid the majestic mountains and ice floes of this serene setting, the leaking oil spreads like a virus staining and often killing everything it encounters. Harbor seals, sea otters, and bald eagles fall victim to the tragic accident.