Visiting his cousin Rucker on a remote island, Jim learns that people on deserted islands don't always pursue the "natural life." While rescuing a woman named Monique from a storm-tossed boat, a huge bag of heroin surfaces.

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.

After a minor car accident and heated argument with the driver, Dan Freeman, Jim Ellison finds that this unbalanced man has targeted him for a full-blown vendetta.

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.

With Ellison having strange visions of jaguars and a series of superhumanly performed thefts occurring around the city, Blair and Jim suspect that he may not be the only sentinel in town.

Using his sentinel powers, Jim saves Edward, the grandson of Mafia don Dominick Lazar, from drowning. When Don Dominick himself thanks Jim for his efforts, he decides to use this opportunity to get on the inside of the city's organized crime world.

Sandburg becomes trapped between floors in a skyscraper elevator controlled by an extortionist, who threatens to send the elevator plummeting to its doom unless a hefty ransom is paid.

During the search for a kidnapped little girl, the skeptical Ellison and Sandburg receive help from Charlie Spring, a "psychic."

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.

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.

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.

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

Ellison and Sandburg spot a man, a mob accountant, who they thought was dead. When they try to catch up to him, he nearly runs them over escaping in his car.

A construction foreman is murdered at a racetrack under renovation, and his body is hidden in a pillar. Weeks later, Banks attends the opening of the racetrack with friends, and Ellison attends a police benefit at the track's turf club. During the benefit event, one of Banks' friends is pushed from the roof, and falls to his death in what looks to the partygoers to be a suicide.

During a local Amnesty International conference, Ellison and Sandburg are assigned to watch over Genevieve Benet, the outspoken St. Germainian peace activist.

Poet Dimitri Gordienski is killed by a sniper at Cascade's Russian Arts Festival. Captain Banks wants the case resolved quickly before the federal government gets involved.

Jim Ellison agrees to go undercover as an inmate in Starkville Prison to investigate a series of suspicious prisoner suicides. He must depend on his thick skin and diplomatic skills as well as his sentinel abilities to navigate through the treacherous world of gangs and dishonest guards within the prison walls.

Ellison, Blair, and Captain Banks are trapped in Clayton Falls when some overzealous military officers quarantine the small town. Apparently, an airborne virus wreaked havoc on the community and now everyone's been ordered to stay in protective custody.

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.

Dawson Quinn, a cop-killing thief who stole five million dollars from the Federal Reserve that has never been found, is transported in an armored police vehicle through a stretch of forested wilderness by a team of cops assisted by Banks, Ellison and Sandburg.

When a local Santeria ceremony goes wrong, one man is dead and the only witness is a woman who was deep in a religious trance while she unknowingly watched the murder. Ellison and Sandburg need to enter into Cascade's Little Havana community in order to uncover the killer.

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

A birthday party for Katrina, a young Russian woman, is interrupted by a vicious attack that claims the life of two men and ends with the theft of a mysterious black suitcase from the woman's boyfriend, Sergei. Ellison and Sandburg receive little cooperation from the witnesses, but Ellison's "Sentinel" intuition leads him to discover a gold neckchain worn by Sergei is, in fact, radioactive.