Thirty-nine-year-old Gao Zheng takes his younger brother and four fellow workers to switch employers in order to raise enough money for his mother's surgery. Little does he know that behind the tempting high wages lies one trap after another. During an unauthorized emergency repair, his younger brother, Gao An, is seriously injured, and the unscrupulous foreman even tries to force Gao Zheng to sign a statement taking the blame. Refusing to compromise, Gao Zheng joins forces with his coworkers to gather evidence, expose the lies, and reclaim their wages. After enduring a life-and-death ordeal, he finally understands what true responsibility means: not risking lives for money, but making sure every brother gets home safely.