Part 2/9:
Upon arrival, Navy Captain Barnes briefs the team, revealing that the spacecraft has been buried under eight yards of coral since its crash in 1709. An underlying threat looms: the possibility of extraterrestrial life inside the craft raises concerns of impending invasion. The sonar detects a low hum emanating from within, signaling that something—or someone—is still alive. The team, including psychologist Norman and mathematician Harry, cautiously prepares for contact.