The early progress of the Red Army in expanding Soviet power in the Jinggangshan region.

Further reading:
Stephen Averill, Revolution in the Highlands: China’s Jinggangshan Base Area
Pang Xianzhi and Jin Chongji, Mao Zedong: A Biography, vol. 1: 1893-1949
C. Martin Wilbur, The Nationalist Revolution in China, 1923-1928

Some names from this episode:
Yuan Wencai, bandit leader who joined with Mao Zedong
Wang Jingwei, leader of Guomindang Left
Tang Shengzhi, leader of Guomindang Left military forces
Chen Hao, led Communist takeover of Chaling
Wan Xixian, political commissar in Revolutionary Army
Xiao Jiabi, militia leader in Suichuan