Movie Story : In 2011's Sector 7, Hae-jun works as a marine equipment manager aboard Eclipse, an oil prospecting ship stationed in an underwater oil field south of Jeju Island. When Jeong-man, a former colleague of his late father, arrives as the new captain, his job is supposed to be overseeing the ship's withdrawal. Instead, he proposes one final round of drilling, setting the crew on a dangerous path.