Cheol Ung, a rookie firefighter, finds himself stepping into the Rescue Unit of a bustling Seoul fire station. The air is thick with anticipation as he embarks on his first mission alongside Jin Seop, a seasoned veteran whose reputation precedes him—a man celebrated for saving more lives in fires than anyone else in the city. On this fateful day, amidst roaring flames and choking smoke that seem to consume everything in their path, Cheol Ung witnesses something that will haunt him forever. Against explicit orders from the chief to retreat, Jin Seop insists on searching for one last occupant trapped inside the inferno. As the building groans under the weight of the fire's fury, Jin Seop emerges just in time, clutching a young girl in his arms. But the triumph comes at a devastating cost: another firefighter doesn’t make it out alive. Cheol Ung’s initial fear transforms into seething anger toward Jin Seop. How could someone so revered allow such tragedy? He blames Jin Seop for the loss of their colleague, questioning whether heroism can ever justify such reckless endangerment. Their strained relationship simmers with tension, each man carrying his own pain and doubts about the other. But before their conflict can fully unravel, another alarm blares through the station—a fire call that neither of them could have anticipated. This new blaze becomes the crucible where their fates intertwine, testing not only their courage but also their ability to understand and trust each other. In the heat of battle, they must confront their deepest fears, grapple with the weight of responsibility, and discover what it truly means to carry the burden of saving lives—and sometimes losing them. (Source: Adapted from HanCinema)