The Summer House

On a warm evening in rural Sullivan, Georgia, Lillian Zachary drives to a decaying home called The Summer House to retrieve her younger sister, Gina, and two-year-old niece, Polly, from the residence of Gina's boyfriend, Stuart Pike, a college dropout and drug dealer. Before Lillian can persuade Gina to leave, a team of men in military-style clothing uses explosive charges to blow open the front door. Armed with suppressed pistols and night-vision goggles, they systematically execute three people downstairs, then clear the upstairs bedrooms, killing Gina, Polly, and Pike. Lillian hides under a bed but is dragged out, questioned, and shot.

At Quantico, Virginia, Major Jeremiah Cook receives a high-priority assignment from his superior, Colonel Ross Phillips. Cook is a former NYPD homicide detective whose left leg was severely damaged by an improvised explosive device (IED) in Afghanistan. Four Army Rangers from the Fourth Battalion, Seventy-Fifth Ranger Regiment, stationed at Hunter Army Airfield near Savannah, have been arrested for the murders of seven civilians, including Polly. The Rangers are Staff Sergeant Caleb Jefferson, the fire-team leader; Corporal Curtis Barnes; Specialist Vinny Tyler; and Specialist Paulie Ruiz. Cook assembles his investigative unit: Special Agent Connie York, his second-in-command and a former Virginia State Police officer; Captain Allen Pierce, a Judge Advocate General (JAG) lawyer; Lieutenant John Huang, an Army psychiatrist; and Special Agent Manuel Sanchez, a former LAPD officer.

Cook and York meet Sheriff Emma Williams at the Sullivan County courthouse. Williams, a former Georgia National Guard public affairs officer who served in Iraq, presents her evidence: A witness walking her dog near The Summer House heard gunfire and saw Jefferson's Ford F-150 truck speeding away, recalling a partial license plate traced to Jefferson. A convenience store's surveillance camera captured the four Rangers about twenty minutes before the killings. Fingerprints belonging to Jefferson and Barnes were found in the house, and shell casings match Jefferson's 9mm Beretta. York notes that Williams never verified the investigators' identification, suggesting she already knew they were coming.

As the team investigates, the evidence begins to unravel. At The Summer House, Sanchez observes that Pike was found dead in bed despite the explosive breach and screaming. At Hunter Army Airfield, Major Frank Moore, the battalion's executive officer, describes Jefferson's fire team as the "Ninja Squad," renowned for nighttime breach operations. Huang interviews the Rangers at the Ralston jail: Barnes and Ruiz give only name and rank, Tyler reveals guilt before shutting down, and Jefferson threatens Huang but inadvertently reveals knowledge that it was an "old historical house," confirming the Rangers were present that night. Sanchez tracks down the dog-walking witness, Wendy Gabriel, and finds critical problems: The utility light near the scene is too dim to identify faces inside a truck, and Gabriel's house contains no dog leash, undermining her claim.

The investigation grows dangerous. Cook and York are nearly killed by a metal gate dropped across a dead-end road while being tailed, and Sanchez is almost struck by a truck running with its headlights off near The Summer House. Williams then presents a motive: Pike was arrested for selling fentanyl, and the drug nearly killed Jefferson's stepdaughter, Carol Crosby, a college student at Savannah State University. A recorded call from Jefferson's phone warned that Pike and his associates would "pay a price."

Layers of conspiracy surface. Moore secretly visits Jefferson in jail, then is shot and killed outside his townhouse. Captain Rory O'Connell, the battalion's rear detachment commander, reveals that Jefferson's squad was temporarily assigned to the CIA during their last deployment and was accused of massacring civilians at a village called Pendahar in Khost province, Afghanistan, leading to the Rangers being sent home early. O'Connell also notes that the entire battalion's deployment was moved up right after Cook's team arrived, removing potential witnesses. At the funeral home, Cook discovers Pike's forearms are both broken, explaining why he could not flee during the attack. Tyler commits suicide in his cell, leaving a note reading "I'M SO SORRY." Williams presents audio recordings from surveillance devices in The Summer House that capture the attack and a voice saying, "This is what you get when you screw with a Ranger's family."

York discovers a critical break: Rewatching the convenience store footage, she notices a television in the background showing a program that aired at 6:40 PM, not 7:40 PM as the time stamp indicates. The footage was doctored to place the Rangers closer to the time of the murders. Sanchez sweeps the team's motel rooms and finds listening devices in every one, confirming the team has been under surveillance since arriving.

Despite orders from Quantico to shut down the investigation and threats of disciplinary action, every team member volunteers to continue. Cook flies to Afghanistan to trace the conspiracy's origins, placing York in command. In Sullivan, evidence systematically vanishes: The dog-walking witness disappears, the store owner flees the country, Pike's body is cremated on Williams's orders, and The Summer House is burned down. Sanchez discovers that both witnesses were coerced through legal threats orchestrated by Williams.

Reporter Peggy Reese, a former Washington Post journalist working at the local paper, reveals that Williams runs the county's largest criminal enterprise, recruiting deputies from soldiers who received "failure to adapt" discharges, a designation for those unable to adjust to military life, in exchange for absolute loyalty. Williams's ambition is to become chief of staff for Congressman Mason Conover, who is running for Senate. Jefferson, devastated by Tyler's suicide, offers to plead guilty to all seven murders if Barnes and Ruiz go free. Deputy Dwight Dix, one of Williams's recruits, confesses to York at a Waffle House that he and two other deputies committed the murders on Williams's orders. The Rangers had visited the house about an hour earlier, accounting for their fingerprints, while a deputy who works at the Hunter firing range obtained spent shell casings from Jefferson's pistol to plant at the scene. Before Dix finishes, masked gunmen burst in, killing Dix and critically wounding York with a gunshot to the head. Williams ordered the hit after Dix's wife, her cousin, reported his erratic behavior.

In Afghanistan, Cook reaches a remote CIA outpost and interviews an officer named Kurtz. Kurtz reveals the truth: During a mission, the Rangers heard screams from a nearby house and breached it. Inside they found a US congressman raping a twelve-year-old Afghan boy, escorted by a female military officer. Cook identifies the congressman as Mason Conover and the officer as Emma Williams. On the return flight, the helicopter is hit by Taliban fire, killing pilot Chief Warrant Officer Carmine Cellucci of the elite 160th Special Operations Aviation Regiment. Cook is trapped in the wreckage but rescued by Kurtz's tribesmen.

Sanchez races to York's hospital in Savannah and discovers an impostor attempting to smother her, shooting the man dead and barricading himself in the room. Pierce and Huang guard the surviving Rangers at the Ralston jail overnight. At Jefferson's arraignment, he pleads guilty to each murder charge while Williams, sitting in the front row, passes him a newspaper clipping about Moore's murder, signaling that his stepdaughter is no longer protected. From Afghanistan, Cook establishes a video call and testifies that the Rangers were framed, that the Afghan massacre footage was a Taliban fabrication, and that the Rangers were sent home because they discovered Conover's crime with Williams as his escort. The courtroom erupts. Williams attempts to flee and fires at Huang outside, but Huang returns fire and strikes her in the chest.

One week later, the team gathers at York's hospital bedside. Cook is in a wheelchair with both legs in casts. Williams is in jail, her deputies turning on one another. Jefferson, now free, thanks Cook's team, acknowledging that frontline soldiers typically distrust rear-echelon support personnel but that these investigators earned their respect through sacrifice. York regains consciousness and asks whether they caught the sheriff and whether the Rangers are safe. Cook and Jefferson confirm both. Looking at his team's resilience, Cook decides he is not going anywhere.