Emergency Stairwell Action Chase

Night. Inside the emergency stairwell of a very tall modern skyscraper, two agents, one man and one woman, race downward while a security team follows above them. The stairwell is concrete and metal, with red emergency lights, smoke haze, flashing alarms, exposed pipes, steel railings, and city lights visible through narrow windows. Both agents wear dark fitted tactical clothing, no hoods, no helmets, no masks, visible hair, no celebrity resemblance. Wide opening shot: the agents rush down the stairwell, taking the steps fast, using the railings for balance. Security appears several floors above, closing in. Fast tracking shot: the stairwell shakes. Cracks spread across a landing below them. Dust falls from the ceiling. The agents react quickly and keep moving downward as the metal railings rattle. Side shot: a landing section suddenly breaks loose below them, creating a gap between stair sections. The agents do not stop. They grab the railing, swing around the broken area, and drop down to the next stable landing. Final 5 seconds: the action becomes more intense. More stair sections crack below them. The agents sprint down another flight as a metal support beam bends and a lower landing collapses away. One agent slips on dust, the other catches them, and both make a fast controlled drop to a lower stair section, landing hard and continuing downward. Final moment: the agents reach a lower emergency door and push through it as the stairwell behind them shakes, dust and red alarm light filling the frame. Style: hyper-realistic, cinematic, fast-paced, tense, urgent, clean and readable action, strong vertical danger, collapsing stairwell, red emergency lights, smoke haze, dust, metal railings, dynamic but clear camera movement, no text, no logos, no cartoon style, no slow motion. Keep proportions. Keep style and features. Aspect ratio 16:9.