A former Marine, struggling to find work, takes a job as a mall security guard in a rough area. On his first night, he finds himself in a high-stakes situation when a young girl named Jamie arrives at the mall seeking protection. Jamie is the key witness in a federal trial and is being pursued by a merciless gang led by a ruthless leader. The security guard and his eccentric team of colleagues must quickly band together to protect Jamie from the gang, who are willing to go to any lengths to silence her.

As the night unfolds, the security team uses their limited resources and the layout of the mall to create defensive strategies against the increasingly violent attacks from the gang. The former Marine's tactical skills become crucial as they navigate through intense and dangerous encounters, striving to keep Jamie safe until help can arrive. Amidst the chaos, personal struggles, and occasional moments of camaraderie, the team's resolve is tested as they face wave after wave of relentless aggression.