The 2016 film "Patriots Day" is a docudrama that chronicles the events of the 2013 Boston Marathon bombing and the subsequent city-wide manhunt for the perpetrators. The central subject of the film is the real-world terrorist attack and the comprehensive law enforcement investigation that followed over the next four days.
The narrative follows the timeline of the actual events, beginning with the preparations for the marathon and culminating in the capture of the surviving suspect. It portrays the bombing itself, the immediate emergency response, and the complex, multi-agency investigation led by the FBI. Key plot points include the analysis of surveillance footage to identify the Tsarnaev brothers, their subsequent actions including the murder of an MIT police officer, a carjacking, and the climactic shootout in Watertown, Massachusetts. The story is told through the perspectives of several real-life figures, including police officers, FBI agents, government officials, and civilian victims, interwoven with the experiences of a composite Boston Police Sergeant character who serves as the audience's guide through the crisis.
By blending dramatized scenes with actual news and surveillance footage, the film functions as a historical procedural. Its primary aim is to document the methodical process of the investigation and to honor the resilience of the victims and the city of Boston. The film emphasizes themes of community solidarity, inter-agency cooperation, and the procedural aspects of a modern counter-terrorism operation, presenting a tribute to the first responders and citizens involved rather than focusing solely on the motivations of the attackers.