In the small town of Walpole, New Jersey, a college student has gone missing in Lenape territory, creating tension between the two communities — the townsfolk and Native Americans. While local sheriff Harold Jensen investigates the student’s disappearance, his old rival Phillip Kopus, now an ex-con, returns to town. Meanwhile, Rachel (Harold’s older daughter) and Junior (a Lenape boy) are in the midst of a high school romance frowned upon by Jean, Rachel’s mother who — trying to track them down one night — injures a Lenape boy in a hit and run.
Harold listens to Brian’s final cassette, stolen from the police station. In a flashback, Brian and Harold hike to the lake and drink beer. After Harold passes out, Brian dictates a goodbye message to Jean. “I wanna be gone and not have to think anymore,” he says. He then swims into the lake and commits suicide.
Phillip asks his dad Jack he set him up in Florida. After taking Phillip’s gun, Jack says it was because Phillip disobeyed him. After Jack eventually returns the gun, Phillip wipes his own prints off it then bags it.
Phillip meets Harold outside the Jensen house. Jean sees Harold take an envelope from Phillip. Harold later tells her the envelope is from a neighbor. Inside the envelope, Harold finds a marked up map.
Phillip, Mike and Junior steal medication from a nursing home pharmacy. Outside the station, Chief Mac leads a protest against the hit-and-run case. Captain Warren inquires about Jean. Harold says she’s in the hospital.
At an auto salvage yard, Harold replaces the bumper of Jean’s SUV and finds a scrap of cloth from the hit-and-run in the process. At home, Jean tells Harold her car hit a dog and promises not to drink again, though Harold says she wasn’t drunk. She claims, Rachel told her to take his gun.
During a traditional Native American ceremonial dance in the woods, tribe member Phillip Kopus (Jason Momoa) watches as police officer Harold Jensen (Martin Henderson) circulates a “missing person” flyer to the crowd. Jensen later questions locals about a missing NYU student.