After a cruise ship runs aground, outdoor survival guide Lin Ye is stranded on a deserted island with four women from vastly different backgrounds. Their initial hostility gradually gives way to cooperation. Drawing on his survival expertise and the power of a mysterious system, he establishes strict rules and leads them in confronting natural disasters driven by the tides, attacks by ferocious beasts, and the threat of hostile outsiders. Their struggle to survive in the wilderness evolves into agricultural civilization, and they build a complete system of survival and order on the island before finally being rescued.