Ray, a firefighter with an outstanding record dies at the hand of his own son Richie. Ray's problems with his son began when Richie beat up another boy and Ray then covered it up. Mr Smith, who had died in a fire Ray had fought, is his newly appointed guide - and not a very willing one.

Bitter recluse Nancy, who cares more about her cats than about people, ironically dies from being hit in the head by a cat statue. Othniel wants to give her a second chance to learn to like people, and takes her back to the orphanarium, where she used to dream about being adopted by the perfect mom from her favourite movie. Instead she had this harsh adoption board attendant, who hates cats. While her guide Mr Smith is taught a lesson in humility, and maybe something about himself, Nancy tries her best at getting her younger self adopted by the seemingly perfect woman. But things aren't always the way they seem... or how we remember them.

Rhonda, a divorced mother, discourages her daughter Molly from going out with a man she just met, because ""he's a man."" When Rhonda's hate for men causes her death moments later, Othniel argues that Molly will be alone her entire life, unless Rhonda goes back and somehow makes Molly open to love again. Rhonda agrees, but to her surprise, she comes back as the manager of a matchmaking company. But Molly isn't the only one who's having problems with love - and Rhonda doesn't even see that her friend, the baker Zeke is in love with her. Before he has the chance to tell her, Rhonda's ex-husband (who left her 11 years ago) comes back - and proposes! Neither Zeke nor Molly can understand it when Rhonda says yes... Finally, after a number of matchmaking attempts have failed, it's a cake that changes everything.

Ben is an overbearing father. He only wants his son, Max, to do his best and that means winning. After an accident, both Ben and Max are in hospital and to Mr Smith's displeasure it is Max that dies. Instead of being sent back to Max's childhood - his is afterall only 14 - he and Smith are sent to Ben's childhood. Where Max learns the truth about his grandfather and the reasons behind his father's pressure. Ultimately, Max is able to convince Ben that he doesn't have to be the same as his father.

All his life, Dan Patello aspired to be a cop like his father and grandfather. But Dan wasn't prepared for the rampant corruption within the police department, which included bribery and planting evidence. When Dan is killed during an illicit traffic stop, Mr. Smith doesn't have any symopthy for this 'dirty cop' and doesn't want to defend him. But Othniel see's Dan's promise and sends the due back to prevent Dan's younger self (10 years before) from accepting his first bribe. Along the way Dan discovers his father's secret, a secret he may not be able to accept.

Mark and Mindy were married young and fought for the rest of their life until their car crashes during one of their arguments. Both Mark and Mindy must go back to find out the real reasons behind their failed marriage. They are sent back to their honeymoon, as proprietors of the hotel, and as both claim that it was a tennis match that started the resentment, they try to stop Mark's back injury which happened during the match. They fail, and the newlyweds spend the honeymoon separately: her in the dining room and he in the hotel room. During that day they discover the real reasons behind their failed marriage: a fake diamond ring, and a call from a former lover. Young Mark and Mindy break up. But as Mr Smith tells them: It's not over till the fat lady sings...

Stage magician Tony is executed in the electric chair after being found guilty of the murder of his sister, Vicki. Othniel says that if Tony had only relied more on his girlfriend after the murder, he could have been freed. Tony protests, showing anger towards God. Sent back as a security guard, he starts looking for the real killer among the other talents at the theatre. Soon the rivalry between Vicki and Tony's girlfriend Dee Dee is apparent - Dee Dee wants to get out of the small town, while Vicki is content to stay there - as well as fellow magician Jacques' infatuation with Vicki. But in the commotion during one of Tony's tricks, the killer strikes and Tony is once again arrested. Even more angry with God, security guard-Tony has a hard convincing his younger self to accept that he wasn't sent back to stop the murder, and not to shut Dee Dee out.

Tabloid reporter Kat meets her untimely death in a dumpster going after a video. She gets a second chance to go back and convince her younger self not to destroy actress Dorothy Ireland's life by printing pictures of her with another woman. Posing as Dorothy's new assistant, Kat learns the truth about who the woman in the picture is, but she is unable to stop her younger self from getting a scoop, but this time it's she who's Dorothy's alleged lover, which spins Dorothy's life out of control, and she attempts to take her own life. When nothing seems to get the younger Kat to listen to reason and retract the story, she is forced to expose her own dirtiest secret.

Celebrity dentist Sandy is interviwing a new receptionist and hits on her constantly. Finally she agrees to go to the opera, but Sandy has no intention of going to the opera - he's ordered a luxurious dinner instead. Ironically, he chokes on an oyster. Othniel explains how he's refused to see women as thinking persons, and how he needs to walk a mile in their shoes, and since Mr Smith defends him sends him along for the ride - as Mandy and Lorraine. They are promptly hired by a younger Sandy in 1986, and Lorraine/Mr Smith decide that Mandy could learn a lot from Sandy's shy longtime nurse, Kirsten. Under Mandy and Lorraine's guidance, Kirsten's love for Sandy matures, but so does Sandy, up to the point where he asks Kirsten out to opera - for real. But knowing himself, Mandy goes to the opera, and when he doesn't find Sandy and Kirsten there, Mandy suspects that Sandy has put the moves on Kirsten, quite wrongly as it happens, but the result is that Mandy and Kirsten are fired. But Mr S

David gets a second chance to go back and change a decision he made and the regret of allowing his son to live. When he was younger toxic waste was being dumped, the first sign being dead frogs turning up in the water. David has to decide which is more important - people or his career. At the same time his wife is pregnant with their first child, Jeremy. Mr. Smith shows him how much of a miracle Jeremy is and that just because he has down syndome doesn't mean he isn't special, and the perfect son.

Darcy, a successful car dealer, dies after a posh car rolls onto her. She is sent back to correct a fatal error - she sold a car to a young girl, Rebecca, who died after an accident due to mechanical faults. She gets the chance to meet Rebecca's brother, and learns that they had already lost their parents which makes her more determined to stop the accident as she has already bought the car. The accident isn't prevented and as Rebecca lies in hospital she has one last chance to talk sense into herself.

Ruth, an unsuccessful writer, comes back after 50 years to the farm where she grew up in poverty, but she has barely time to see her brother Paul's grave before she dies. Since Ruth had left the farm when Paul died, Othniel shows her how he died: Ruth had told him to bury the only shoes he had, his grandmother's shoes to make a stand against poverty - which left him unprotected when a snake bit him. Othniel gives her a chance to make things right, and Ruth is determined to take Paul with her when she leaves this time... But then, maybe there is something that she has refused to see, in her poor family home.

Delia has hated Christmas for 19 years when after an argument with her twin sister Amanda over Jake (a member of their band). Amanda had taken off on a motorcycle and never come back. She gets a second chance in life with family and gets a second chance in love as well.

When Reese O'Malley visit his and his brother Ethan's bar, the old conflict between the siblings result in a threat to sell the bar, and Reese's death... Othniel accuses Reese with causing Ethan to fail the fraternity hazing, but Reese feels that it's Ethan that should be taught a lesson. Sent back to the days of the hazing, Reese (now called Chip) sees how harsch he is to Ethan, but still maintains that Ethan always got the attention from their dying mom, even if he didn't seem to care about her at all. Chip tries to convince Ethan to let Reese have this frat club to himself, when he learns that Ethan's sole motive is to have his brother's love. But will young Reese believe that?

Dr. Steven Weaver, an anger management therapist, is surprised to see his newest client is Buzzy, a man who used to be his childhood bully. Steven uses the opportunity to exact revenge against the man during the session, but the argument becomes violent and Steven dies while falling out the window of his office. During his trial, Smith and Othniel determine Steven's problems stemmed from his struggle to understand his parent's divorce, and his trauma over catching his father with a mistress. Steven is sent back in time as an ice skating coach, and he attempts to use the job as a way to prevent an event started by the bully that embarassed him in front of his friends. He also tries to get closer to his mother and make her realize how much she babied Steven so he wouldn't defend himself against Buzzy. Although he isn't able to stop the event, he learns that when he stopped the younger Steven from running into his father, it led to a heartfelt talk with a classmate who would become his wi

After a brief appearence at a school, Charlie - a gang member in the 1930s and 1940s - is killed. Othniel tells him that he has redeemed his bad ways ever since, but that he can get a second chance anyway, to solve his conflict with the love of his life, Rose. Mr Smith follows Charlie back to Harlem during the Prohibition era, where Charlies interracial relationship to Rose is something strange and frowned upon. But the real problem is that Rose's father is with the FBI, and that Rose will turn Charlie in. Now Charlie must somehow convince himself to get out before the deal that will be raided by the FBI, or get Rose to not turn him in.

After running away from his responsibilites all his life Bobby finally has a heart attack and dies, while gambling again. He gets a second chance to look after and care for his daughter Rennie. He was once engaged to her mother Colleen, but didn't think was good enough so he left. Ten years on and Colleen has died leaving Rennie to go with relatives. Taking charge Bobby tries to convince himself that not only does she need him, but he needs her as well.

A former champion boxer, Jimmy, gives up on life after he challenges his brother to a fight. The fight being rigged ends up in his brother dying. He gets the second chance to return and save the life of his brother, but he is still determined to win the fight.

Roger Hamilton had gone through life with more money and power than he could ever have dreamed of as a child, but when a transaction goes sour and he ends up dead he gets his second chance. Roger is returned to his youth as a doctor who has to make the decision of who to give a kidney trasplant to. He meets Caroline and her newphew Mikey, and falls in love. On the way out of a jewelry shop (with a ring) Roger is injured and they discover his kidney isn't working properly. Roger must then decide whether to give the available kidney to his younger self - or sacrifice himself for Caroline.

Camilla has spent her life looking after her daughter and granddaughter, but all comes to an end when a wayward piano kills her. She gets to go back and try to fix her daughter marriage and make her daughter take responsibility to look after her own daughter (who ran away after Camilla's death). She also gets the chance to pursue a career of her own as a hairdresser.

Luke is flying to France where his wife and son are planning to live after the marriage had failed. Mr Smith, a flight attendant, helps an eldery woman named Anne to prevent her from taking her own life. Also, a young boy who lost his leg when he was younger believes he can hear his dog, Willy, barking, they find out the dog has been placed into the wrong compartment and if the plane doesn't turn around the dog will die. Luke has to make the decision whether the dog and his family are really the most important things in his life.

Ryan gets a second chance to return to his teenage years to prevent his father, a successful doctor, from having a heart operation which led to him being brain damaged. He always blamed himself as he had talked his father into having the proceedure. Mr. Smith gets to spend time with them and Rachel, Ryan's sister, lets him know who she thinks he really is: their guardian angel. Despite Ryan's pleading, his father still goes ahead with the surgery, this time with no complications and Ryan's finds himself not as a doctor - but as a priest, which he had always wanted to be.