1 - Episode 1

In January 1933, the Japanese army captured Shanhaiguan and occupied Chengde in March. The anti-Japanese situation in North China was in jeopardy. Shanghai's multinational forces are glued and undercurrent. Gu Pan, Tian Qiao Jie and Tan Zhong Wen are agents of Qingshan Military Academy. Gu Pan was alone in completing the assassination of the Japanese Economic Secretary, Koji Koji. Gu Pan was wounded to complete the mission, but was rescued by Wei Dong, an outstanding soldier. Under the guidance of Wei Dong, Gu Pan has been tested and entered the secret organization "Nest" to try to find out why he was framed. In the process of pursuing justice, Gu Pan gradually moved closer to the Red Revolution and used the "Hippo" as the codename to become a communist fighter.

2 - Episode 2

3 - Episode 3

4 - Episode 4

5 - Episode 5

6 - Episode 6

7 - Episode 7

8 - Episode 8

9 - Episode 9

10 - Episode 10

11 - Episode 11

12 - Episode 12

13 - Episode 13

14 - Episode 14

15 - Episode 15

16 - Episode 16

17 - Episode 17

18 - Episode 18

19 - Episode 19

20 - Episode 20

21 - Episode 21

22 - Episode 22

23 - Episode 23

24 - Episode 24

25 - Episode 25

26 - Episode 26

27 - Episode 27

28 - Episode 28

29 - Episode 29

30 - Episode 30

31 - Episode 31

32 - Episode 32

33 - Episode 33

34 - Episode 34

35 - Episode 35

36 - Episode 36

37 - Episode 37

38 - Episode 38

39 - Episode 39

40 - Episode 40

41 - Episode 41

42 - Episode 42