Undercover: Echoes from a Lonely Island

In 1949, the Taiwan Strait is lashed by fierce winds and towering waves. Yu Zecheng, a Communist underground agent codenamed Emei Peak, has no time to savor the joy of victory before Wu Jingzhong forces him aboard a ship bound for Keelung. Behind him lies a homeland he never had the chance to say goodbye to; ahead is an isolated island rife with hidden currents. Under the watchful eye of his former superior, Wu Jingzhong, and hunted by the bloodthirsty secret agent Li Zixuan, he resumes his life undercover. With all his faith and emotions cut off on the other side of the strait, he must guard alone, amid endless darkness and suspicion, the faint glimmer that is about to go out.