Caleb Temple's 10th birthday turns nightmarish when his sister, Merlyn Temple, is killed and his father, Gage Temple, is the prime suspect. Gage's guilt seems confirmed when he commits suicide in his jail cell, leaving Caleb an orphan... except for the ghost of Merlyn. Caleb seems to find a father figure in Dr. Matt Crower, but this won't last if Sheriff Lucas Buck has any say in the matter.

Fleeing deep into the woods from Sheriff Lucas Buck, young Caleb takes refuge in an eerie, abandoned hunting lodge and is terrified when he discovers a dying man who has been tortured and is being held prisoner there. Also, Lucas sends a horrifying message to coroner Curtis Z. Webb via Webb's precious goat Eli.

Sheriff Buck calls in a favor from the local judge, Harrison Halpern who is overseeing Caleb's custody hearing, hoping to ensure his favored status, but he doesn't stop there.

Junkyard owner Carter Bowen panics when Sheriff Buck wants his teenage daughter, Poppy, to work for him as payback for an old favor. When he refuses, his life quickly begins to unravel and the past comes back to haunt him. Not only does the past haunt him, it helps destroy his wife Etta.

Gail may have pushed Sheriff Buck too far when she accuses him of foul play in the death of his former girlfriend, who was with him just before her car mysteriously drove off a bridge. Lucas also has a horrific intervention when Waylon Flood is confronted by Ben for being abusive to his son and ex-wife.

When Jack Drey, a South Carolina state police lieutenant, throws his weight around in the investigation of the disappearance of his adulterous brother-in-law, Hack Weller, Sheriff Buck becomes wary. Drey suspects that Weller's obsession with Selena might have driven a vicious Buck to kill him.

Sheriff Lucas Buck gets revenge, in his own chilling fashion, on four men who move to Trinity and set off a crime wave, causing the local residents to start losing faith in his control. Special Guest Star Richard Edson as Lowell Stokes

Merlyn borrows an unborn child's spirit and reappears as Halle. Both Lucas and Caleb realize what has happened, and while Lucas tries to keep Merlyn in his world, Caleb knows she must return the spirit to the baby before it's too late.

Radio talk show host Mel Kirby approaches Lucas for help in bringing his show to television. When Lucas refuses, Mel and his co-anchor wife, Gloria, vow to ruin Lucas. Meanwhile, a depressed Caleb decides he wants to give Merlyn a second funeral enlisting Boone and Joney Keith to help.

Lucas may have corrupted the local priest, Father Tilden, and he may be able to take his revenge on townspeople who cross his path. But not even he can control the seemingly miraculous activities of the dead Merlyn, determined to make Lucas answer for his crimes. Lucas also seeks revenge against a lawyer who won a big settlement against the sheriff's department. Lucas also shows his softer side in helping old Bertie, a blind man.

A sudden, mysterious bleeding illness quickly spreads through Trinity, causing death and devastation, as well as the arrival of a new doctor, Dr. Peele. As the townspeople fall victim to the plague, Matt suffers a breakdown and Lucas turns to Dr. Peele for help.

Dr. Matt decides to re-investigate the murder of Merlyn. He also is curious when a woman checks into his hospital as Mrs. Smith. She begins to tell Matt all about the evil of Lucas and how she wants to kill him.

Artie, Ben Healy's brother, holds-up a local store in Trinity for a cheap watch. Ben and Lucas respond to the robbery and Ben accidentally shoots Artie. Artie, injured but still conscious, takes Lucas hostage, including Caleb and Gail.

Dr. Matt struggles with his alcoholism and the death of his family. Lucas tries to push him over the edge by offering him a drink and forcing the bizarre memories of his wife and daughter.

Lucas and Caleb forge a bond when facing matters of life and death. After Caleb is electrocuted and dies at the hospital, Lucas steps in and brings the boy back to life.

Upon Gail's announcement, she faints in Lucas' office and is taken to the hospital where she is told that she is pregnant. Gail threatens to have an abortion and even attempts to kill herself because she knows that she is carrying the evil offspring of Lucas Buck.

Yancy can't find certain files and believes Lucas has them. Billy and Selena go to Lucas' house to look for the missing files and end up making love in Lucas' bed.

Caleb is trying to find the full potential of his powers by attempting to kill Gail, leaving him sole heir of Lucas' will. But, when Lucas finds out what Caleb is up to, he attempts to save Gail. Lucas offers Dr. Narone a chilling ultimatum. Lucas and Caleb have an evil face-off. After the horrible incident that happened, Gail winds up at the hospital in a coma, and Lucas was very worried about Gail at that moment. During that time, Gail did recover and survived from being attacked from Caleb.

Selena reaches out to Caleb and tries to help him with his schoolwork. She begins to spend extra time with him, which bothers Lucas. Selena also tries to reconcile with her father. Lucas also teaches Loris Holt a lesson when she tries to forbid Caleb from going out with him.

Through dreams and visions, Lucas allows Gail to learn bit by bit what happened to her parents. She learned that her father was abusing her and her mother was having an affair with Gage Temple, Caleb's father.

Candy leads Ben to a house, which turns out to be the place that Judith Temple used to help abandoned children. With Gail they discover drawings from the young children as well as several drawings of Lucas done with a great amount of love by Judith.

Lucas calls on the ghost of Albert DeSalvo, the "Boston Strangler", to come to Merlyn. Lucas leaves town to attend a convention, and DeSalvo decides to do more than just try to kill Merlyn.