Wang Lao Gan Yu You Ji Dui

At the onset of the Anti-Japanese War, veteran Communist Wang Laogan operates a secret resistance from Shuiquan Tavern in occupied Shandong. As his team expands—bringing together former bandits, wealthy elites, and other awakened citizens—they carry out daring missions, culminating in a bold tunnel ambush that delivers a decisive blow to the Japanese forces.

Selected season 1, episode 1.