An interstellar navigation team encounters a drifting spaceship in deep space and receives a special signal echo. The team members cooperate with each other, cautiously explore the strange spaceship, and successfully rescue an alien life form. Together, they sort through various records left in the past, distinguish illusions from real clues, and explore the complete process of the interstellar event twelve years ago. Upholding rationality and empathy, everyone respects the stances of different lives and carefully weighs the demands of all parties. The group arrives at an asteroid relay station, preserves key evidence, seeks a viable way out that balances multiple parties, and rushes toward a brand-new voyage belonging to everyone.