Two firemen, Joon Woo and Hyun, are both in the same unit but have very different views on firefighting. Joon Woo cares only for rescuing of victims, regardless of the risk, while Hyun takes a more levelheaded look at controlling the fires. During one mission, their team is ordered to leave a family inside a burning building. Joon Woo still wants to save them but is pulled away by Hyun. Their conflictseventually escalate to the point that Joon Woo leaves the force. But when his girlfriend is involved in a potentially fatal accident, all differences must be put aside in order to save her life.