It's Christmas Eve in Hong Kong, and while the residents prepare to celebrate, a dedicated band of brothers - the firefighters of Pillar Point Division (Nicholas Tse, Shawn Yue, Andy On) - are dispatched to a warehouse fire. What they find there first plunges the city into darkness, then threatens a far worse fate for them all. When every move could mean sudden death, the bonds between the men are tested, and dangerous truths uncovered. Will they be able to trust each other enough to make it through the night, saving themselves and the city they've sworn to protect?