Johnny Smith was leading an idyllic small-town life: working as a high school science teacher, engaged to the love of his life, Sarah, and being a devoted son to his widowed mother, Vera, who lives nearby. But after a near-fatal car accident puts him in a deep coma, Johnny awakens six years later to find everything has changed: Sarah is now married to someone else, local sheriff Walt Bannerman; the child they are raising is actually Johnny's son and knows nothing about his real father; and Johnny's mother Vera has passed away, leaving Johnny's finances under the thumb of Reverend Purdy, an influential religious leader who is also his mother's former lover. But, most importantly, Johnny himself has changed: he now finds himself with the gift (or curse) of second sight.

With the help of his new friend Bruce, Johnny attempts to stop the Bangor Strangler from claiming another victim.

Johnny returns to his old school as a substitute teacher and as a hockey coach. During practice, Johnny has a vision inside a player's heart that indicates he may have a serious heart condition. However, there is no medical evidence to support him.

Johnny's vision of Todd, and his previous publicity, cause an outcry by the parents who demand that Johnny be fired.

Johnny is summoned to jury duty on a murder trial. Johnny starts to get visions which lead him to believe the accused is innocent. He is the only not-guilty vote

Johnny moves into his new house and starts having visions of a tub filled with blood. He also sees visions of his dead mother, and comes to believe that Rev. Purdy killed his mother. The facts seem to suggest that Purdy did indeed engage in a cover-up concerning the death of Johnny's mother. In a final confrontation Johnny touches Purdy and gains a vision of Purdy finding Johnny's mother dead by suicide. Realizing what the death of a child can drive a parent to do, he goes to the aid of a local neighbor girl whose brother died on a military mission and whose mother is preparing to kill herself.

Johnny ends up in a fantasy world (or vision?) when he wakes up one day to find himself married to Sarah and the father of her two children.

Conrad Hurley, a disgruntled electrician fired by the town council, goes into the bank with a shotgun and a revolver, tries to rob it, and takes everyone present (including Sara) hostage. Waiting outside for Sara, Johnny gets a vision of a future massacre and goes in to try to alter the future he perceives. Guided by his visions and scrambling wildly to adapt to the altering futures he keeps seeing in which he dies, Sara dies, Conrad dies, and/or everyone dies each time he changes something, Johnny soon becomes Conrad's unlikely ally. Finally Johnny manages to earn Conrad's trust and manage to talk him into releasing the hostages and giving himself up.

Johnny and Bruce drive into the small town of Hobb's Landing where Johnny gets a vision of himself being burned at the stake. He goes to the police and has a vision of the murder of a local girl. The police hold him on charges of witchcraft and he is sent to trial.

A jealous ex-lover stalks Dana as her affair with Johnny heats up.

In the past Johnny Smith as a child and Greg Stilson, the son of a Bible salesman, briefly meet and Johnny has a future vision of danger. In the present Johnny has a vision of a restaurant graduation party tragedy and warns his employer, the father of a student. Stilson, now a Senatorial candidate being backed by Rev. Purdy, comes to town after the tragedy and Johnny gets visions of catastrophe in Stilson's wake. Johnny and Sara get together while in flashback we see how Stilson has been a total bastard all of his life, and that Johnny came out of his coma just as Stilson was sworn in as state representative. When they meet at a rally Johnny shakes Stilson's hand and sees him as the source of catastrophe - Washington D.C. devastated by a nuclear holocaust.

The season premiere finds Johnny still shaken by his Armageddon visions and growing increasingly obsessed with Stillson, whom he's secretly investigating. But another mystery draws him back into the public eye: a test of Johnny's powers by an adversary who is as obsessed with him as Johnny is with Stillson.

As Walt begins to wonder what's between Johnny and his wife Sara, a group of teenagers disappear into an abandoned copper mine that was owned by Johnny's grandfather. Walt brings Johnny in to help with the rescue and Smith soon begins to get visions not only of the teens but of the miners who died in an incident in 1949 brought on by his grandfather's actions. The ghost miners seem to be striking back at Johnny and Walt is seriously injured. The teens are rescued but Johnny gets a vision of Walt's funeral as he is taken away in the ambulance. (To be continued)

Johnny uses his powers to reach into Walt's comatose mind and lead him back to consciousness.

Johnny must stop the release of a new anti-wrinkle cream based on his vision of it causing birth defects in the future.

After learning Stillson's congressional rival, a long-time incumbent is a war veteran with a dark secret. Johnny ponders whether the truth is more important than Stillson's defeat.

Johnny is kidnapped by three women who take him to a haunted house - each has their own reasons. Penny is romantically obsessed with Johnny and wants to have his baby, Maddy plans on making a "Blair Witch" style Internet event and sell it to Rev. Purdy, and Anita is seemingly obsessed with the mystery of the family who was killed there. While Dana and Sara reluctantly go through the piles of "fan mail" that Johnny receives, Johnny himself unravels the mystery through his visions, and discovers that the young son Nicholas who survived is responsible...and that Anita is that boy, dressed as a woman. With the women's help the police arrive just in time as Anita/Nicholas goes berserk. Johnny manages to restrain her long enough to save his life and Anita is taken away.

Johnny and Rev. Purdy are traveling on a plane when Johnny gets a vision of the plane crashing and eventually determines that the pilot will put the plane into a dive as the engine explodes. He manages to convince the air marshal he's telling the truth but he sees the same vision of destruction compliments of the co-pilot and realizes both men are trying to save the plane. Using his gift Johnny determines the wings are covered with ice due to an instrument malfunction. When the co-pilot is injured Johnny is forced to take his seat and direct the pilot with his visions to take the proper steps to save the plane.

A wild old high school friend, Jason, comes to see Johnny seeking a vision of the future as he will be dying of a heart condition. Johnny sees him receiving a successful heart transplant and gives him the good news, but later gets a vision of Jason's sister Kate being killed in a driving accident and becoming the donor. Johnny later gets a vision of the other driver's license plate while Jason takes a turn for the worse, then sees a vision of him and Kate arguing which leads to her going out and getting in the accident. Johnny soon realizes even if he saves Kate and gets Jason a heart through Purdy's connections, someone else who would have received the heart will die. Johnny tracks down the drunk driver, Patrick Hanchin, and confronts him, but sees that even if Johnny stops him from killing Kate, he'll hit a school bus.

Johnny goes to the funeral of Bruce's father and somehow gives Bruce visions of what Bruce's life would have been like if he had never met Johnny.

In the aftermath of Kate's death, Johnny's friends stage an intervention to shake him out of his guilt, but as Bruce drives him to Purdy's lakeside resort, he senses a storm is brewing. Now Johnny is forced to try to come to terms with his destiny in order to save the people he loves.

Johnny tries to prevent a boxer from dying in the ring.

While following a missing person's case of an eleven year old named Katie Mercer, Johnny's visions of the girl intercede with visions of the night of his crash 9 years ago. He struggles with the help of Rebecca to relive and endure the night of his accident so that he could figure out where Katie is located as the intensity of the physical and emotional pain of his visions start to wear him down. As Johnny sorts out this strange intertwining of the past and present, he is led to the mysterious person that saved his life.

Johnny has a vision of himself interrupting a wedding, and becomes involved to determine why the marriage should or shouldn't be stopped, while dealing with the repercussions of Sarah's decision to abandon him and marry Walt.

A series of wild and domestic animal attacks lie at the heart of a mystery that Johnny must solve before the entire town is destroyed.

Johnny is forced to try and save Greg Stillson...by stopping Rachel Caldwell from making a fatal mistake, even though it may cause nuclear armageddon.

Johnny must help a former student, now a researcher for a plastics company, with a future of destruction setting off the doomsday of Johnny's visions.

Johnny has been getting visions of his dead father, who is apparently trying to warn him of some coming disaster.

When Stillson's girlfriend disappears, he must reluctantly turn to Johnny Smith for help in locating her.

Johnny vows to find a way to stop Miranda from marrying Greg Stillson...before she ends up being killed. Meanwhile the mysterious Janus further insinuates himself into Stillson's and Purdy's lives.

Johnny helps in the investigation of a hate-crime commited by the son of a neo-Nazi, but soon has reason to believe the boy's confession may be false.

Johnny ends up taking the place of the inside man in a museum robbery to stop the crime and prevent several deaths, but soon finds he may have to help them escape to prevent innocent people from being killed.

To save a child, Johnny infiltrates a compound belonging to a cult, but soon finds that the place is loaded with explosives and must stop a confrontation between the cult leader and the FBI before the entire place goes up.

A woman claiming to be Purdy's lost-long daughter arrives in Cleaves Mills. Johnny has a vision of the woman causing harm to Purdy, who ignores Johnny's warning. While investigating the woman, Johnny learns of Purdy's secret past.