Gu Yizhong, a son of the Gu family in Suzhou, returned to China after studying architecture at the University of Pennsylvania. After the outbreak of the Anti-Japanese War, he and his girlfriend Xiao Ruotong joined underground organizations.After a rescue operation failed, all contact points of Suzhou's underground organizations were exposed.Gu Yizhong was mistaken for a traitor within the party due to deliberate frame-up by the Japanese and puppets. Unable to prove his innocence, he took the initiative to infiltrate the Japanese and puppets. After many twists and turns, he finally became a latent agent of our party in the Suzhou secret service station.

Under tremendous pressure, Gu Yizhong will fight with Zhou Zhifei, the head of the Suzhou Wang Puppet Secret Service Station, and Toshio Kondo, the Japanese military adviser, and wait for the opportunity to find the real traitor in the party, Black Eight, and remove him.Gu Yizhong continued to secretly collect intelligence for our party, saved comrades in the party from danger many times, and provided tremendous support and help to the anti-Japanese and national salvation movement organized by our party's underground organization in Suzhou.He moved forward with unwavering faith and continued to grow in the struggle.

Episodes 1-4, August 6

Episodes 5-6, August 7

Episodes 7-8, August 8

Episode 9, August 9

Episode 10, August 10

Episodes 11-12, August 11

Episode 13-14, August 12

Episode 15-16, August 13

Episode 17-18, August 14

Episodes 19-20, August 15

Episode 21, August 16

Episode 22, August 17

Episode 23-24, August 18

Episode 25-26, August 19

Episode 27-28, August 20

Episodes 29-30, August 21

Episode 31-32, August 22

Episode 33, August 23

Episode 34, August 24

Episode 35, August 25

Episode 36, August 26