The sole survivor of an Army plane crash in the Peruvian hinterlands, Jim Ellison subsisted for nearly two years on his raw animal instincts. When he returned to America and became a police lieutenant, Jim discovered that the abilities that had kept him alive in the jungle now gave him extraordinary senses of perception. With the help of Captain Simon Banks and a grad student Blair Sandburg, Jim now attempts to use these powers to apprehend a terrorist bomber called the Switchman.

The town of Cascade is brought to its knees when Garrett Kincaid, a notorious criminal that Jim Ellison had arrested years before, seizes control of the town's police station with the help of his gang of felons.

After witnessing the death of undercover officer Danny Choi at the hands of a sniper named Tommy Juno, Jim uses his enhanced vision to identify and apprehend the killer. But the case against Juno is thrown out of court when its decided that no human could possibly have seen as far as Ellison had claimed.

When Blair unknowingly moves into an apartment next to the drug lab of a local gang (dubbed the 357), Jim suddenly finds himself embroiled in the beginnings of an all-out gang war.

Blair and Jim, along with forensics specialist Carolyn Plummer, suspect that a series of seemingly unrelated murders are actually the work of a serial killer.

Jim and Blair are assigned to escort Derek Wilson, a key witness in a local homicide case, on his train ride from Oregon to the courthouse in Cascade. Wilson has essential information that will link his employer to charges of arson and murder.

While guest-lecturing in Blair's anthropology class, Jim saves the entire building from a deadly gas leak only to discover that the leak was designed to distract the campus' attention while a canister of the Ebola virus was being stolen from the hazardous materials lab.

After stopping an armored car heist, Ellison is struck by the high-tech weaponry at the criminals' disposal.

Jim's sentinel abilities detect something strange at the crime scenes of all the recent jewelry robberies but he's unable to figure out exactly what's causing the reaction.

Blair forces Jim to take a vacation at a remote monastery. Initially reluctant, Ellison begins to enjoy the solitude until one of the monks is found dead.

During a flight to South America, Captain Banks and his son Daryl crash land in the Peruvian jungle and eventually stumble across a shady lumbering operation run by a man named Reischer.

Jim and Blair are assigned to protect pop singer Angie Ferris from an obsessive, escaped convict named Jay Weston.

At an unrelated auto accident by the river, evidence surfaces which implicates Jim and his old partner, Jack Pendergrast, in a kidnapping/murder case from four years prior.

When Blair and Jim join Captain Banks at his 20-year high school reunion they discover more than just nostalgia awaiting them in the officer's hometown.

Ellison finds himself witness to the beginnings of an underworld war between the drug-running bikers of The Void and the local representatives of the deadly Japanese Yakuza.

Ellison gets his fifteen minutes of fame when the police department invites TV producer Wendy Hawthorne and Conner, her cameraman, to do a piece on him for her show "True Crime."

Ellison and Sandburg are called in to investigate an attack on a prostitute named Amber Larkin.

When employees start dying "accidentally" aboard the North Star Five oilrig, Jim and Blair discover that their newest assignment has them walking a decidedly watery beat.

Ellison and Sandburg get a chance to hone their driving skills when some high-end car thieves set up shop on the streets of Cascade.

When Francisco Rivero, an ex-associate of Hector Carasco, kidnaps Carasco's daughter Maya and uses her as blackmail for the family fortune, Ellison and Sandburg join forces with her Uncle Gustavo to bring her safely home.

When a series of explosions level black churches throughout Cascade, Ellison, Sandburg and Captain Banks uncover the racist influences of the White Aryan Resistance (WAR) in their city.

Ellison and Sandburg trace the distribution of Golden, Cascade's trendy new drug, to a local dive where the narcotic wreaks havoc with Ellison's enhanced senses.

Ellison sees an undercover police detective named Brent Marten thrown to his death from a police helicopter. Ellison watches Banks and his men retrieve the body from the harbor, then learns the case has been placed under the jurisdiction of Internal Affairs investigator Sheila Irwin.

An arsonist burns down a furniture warehouse, and Ellison rescues an unconscious guard from the building.

Ellison receives a phone call from old Army buddy Sam Holland, who asks for help.