drive through the blizzard to get help. While driving away, Hank veers away from something. The truck slides off the icy road and crashes. Malloy and Jenny hear the crash, and Malloy hands a gun to Jenny before investigating. Malloy finds Manny murdered and also found Jack's body, which caused the crash. Gilbert flees while Malloy rushes back to the clinic. The killer electrocutes McKenzie, deactivating the building's power and heating system. Malloy forces everyone except Jenny to their cells, realizing a murderer is impersonating a cop. Suspecting this is Mary's killer, Malloy finds evidence on Connor's body to support this. As Malloy and Jenny return to the cells, Hank, suspecting Malloy, knocks him out. He locks Malloy in Slater's cell and releases everyone else. Malloy finds a matchbook in Slater's cell from a Seattle restaurant frequented by cops, identifying him as the killer. Malloy realizes Slater has been observing him and other policemen he murdered at the restaurant. Malloy escapes and finds the missing badges above Slater's room, which he collects as trophies. After establishing his innocence, Malloy has Jones and Lopez conduct patrol while Jaworski stays with Jenny. Malloy heads into the tunnels beneath the facility. Unaware that Slater is the killer, Hank and Noah help him retrieve logs in the tunnels for heating. Slater convinces them to split up before killing each. As Malloy patrols the tunnels, Slater taunts him over a CB radio and lures Malloy to Noah's hanged body, where he finds the other radio. While leaving the clinic, Slater hears Jenny call Malloy. Malloy learns Slater is at the tunnel's trapdoor and rushes to save Jenny. Outside the installation, Hendricks and the fishing shop owner find Gilbert alive and take him to the rehab center. Hendricks follows Jenny's footprints. Jenny runs to a nearby quonset hut, hiding from Slater. Malloy arrives, telling Jenny to stay inside the shed. Slater catches Hendricks before Malloy catches him from behind. Slater jumps into the shed, knocks Jenny out, and wounds Hendricks. After a fight, Malloy finally kills Slater. Jenny regains consciousness and helps Hendricks walk to the clinic with Malloy. Malloy puts his engagement ring on a tree branch and walks away. Cast Sylvester Stallone as Agent Jake Malloy Charles S. Dutton as Agent Chuck Hendricks Polly Walker as Jenny Munroe Kris Kristofferson as Dr. John "Doc" Mitchell Mif as Carl Brandon Christopher Fulford as Frank Slater