Li Feng drives his state-of-the-art armored RV, the Ark, across the wasteland in search of his missing younger sister. At an abandoned hospital, he rescues Yang Yue, a top medical student trapped by zombies. Her superb medical skills quickly make her an indispensable medic for the convoy. Li Feng's cool decisiveness and Yang Yue's resilience and intelligence help them support each other as they struggle to survive, and feelings quietly begin to grow between them.
While searching for supplies, the convoy encounters Wu Shan, an agile parkour enthusiast, among the city ruins. Familiar with the terrain, Wu Shan helps the convoy escape a horde of zombies. Seeking safety, she joins them and becomes their scout. Later, Li Feng finds Guo Lei, a highly skilled mechanic, at a repair shop. His arrival greatly improves the Ark's maintenance and weapons-modification capabilities. During their dealings with other survivor camps, Sun Jing, a gentle and considerate former psychological counselor, proves to be an excellent communicator with a warm, approachable manner. She takes charge of logistics and diplomacy, helping hold the team together.
However, the convoy's growth catches the attention of Hu Jianjun, leader of the raider gang known as the Blood Wolf Gang. Cunning, seasoned, and ambitious, Hu Jianjun covets the Ark's technology and supplies. He repeatedly launches ambushes in an attempt to seize the vehicle. Li Feng leads the convoy in repelling Hu Jianjun's attacks time and again, relying on the Ark's firepower and the team's close coordination, but Hu Jianjun's threat is never far away.
A crucial turning point comes when the convoy follows a lead to a possible safe zone.
