Attack Jiajin Mountain: A Red Army reconnaissance team embarks on a vital mission to cross Mount Jiajin, the first major snow-capped mountain of the Long March. Along the way, they engage in fierce battles with the Nationalist army and confront mountain bandits. In a surprising turn of events, they find themselves forming unexpected alliances. As they navigate challenges and dangers, their journey becomes a test of courage and resilience, leading to a significant milestone in their quest.