10 years after leaving his hometown, Nick Garrett returns to Knights Ridge, to teach a one-day course at Dufresne College, which he believes is a great way to find out what changes since he was gone. After hurting the ones he loved by writing a book, a best-selling novel, and discovering their secrets, Nick will have to find a way to confront past demons and move on with his life. Nick decides to stay after discovering that his ex-girlfriend, Hannah Daniels, has a 10 year old son named Sam who has a peanut allergy...just like all of the men in the Garrett family.

Nick decides to stay in Knights Ridge and tries to convince dean Leslie Etwood to give him a job at the local college, but things keep getting in his way. In a way to get back at Nick for leaving years ago, Eddie pursues Aubrey. Ikey isn't pleased to see Alison and Owen on an annual date. Hannah is mad at Nick after realizing The Commander came in the Veterinary Care with a silly excuse, only to find out if Sam is Nick's son or not.

Hannah and Janet send Sam on a secret mission that leads to a tragic conclusion; Ronnie and Nick find out The Commander's secret; Ikey and Eddie are angry when they find out Big Cat has been stealing their clients; and Physical Phil plans a date with the pizza girl.

Nick is torn between Hannah and Aubrey, as Aubrey asks him about his and Hannah's relationship. However, an unexpected visitor occupies Nick. Eddie makes a weird response to a "welcome surprise" by his friends. Physical Phil decides to make a huge change in his life. Ray tells Owen about Alison and Ikey's secret relationship.

Hannah shares her feelings with Nick and decides to take her life in a new direction. Eddie is having problems showing his feelings for Janet in public. Nick learns that another professor has taken over his class. Physical Phil is on the verge of losing the only connection to the world outside of his house.

Ray successful ex-wife Christine intimidates Hannah, after she leaves the Cataldo boys in care of an old hippy friend, in order to take a veterinary tech exam. Pizza Girl begs Phil to take her out on a ride with the classic car stored in his garage. Nick sets up Ronnie with Aubrey's friend, but things change when Ronnie realizes he's in love with Aubrey.

Janet and Hannah plan a double date, but their boyfriends can't put their differences behind them. Nick's past comes back to haunt him when he tries to bid on a new project with Eddie, and the person hiring is a man named Cupcake Kid. Ikey decides it's time to reach out to his friends, and Owen is having hard time dealing with forgiveness.

Janet is worried because Eddie and her still haven't slept together. Hannah is put in a tough position when Ray tells her that he wants to adopt Sam. Nick thinks that Aubrey is keeping a secret from him.

Owen, Nick, Ronnie, Aubrey, Gabriel and the Commander take a road trip to find the girl who saved Owen's life, and The Commander uses the opportunity to remind his sons of their childhood, and to finally be able to tell them about his condition. Nick encourages Gabriel to tell the truth about his upcoming departure to his daughter.

A visit from Eddie's ex-girlfriend Rory causes problems in his relationship with Janet. Nick receives a great job offer that should take him far away from Knights Ridge. Hannah is arrested for assaulting Ray's ex-wife Christine.

A visit from Eddie's ex-girlfriend Rory causes problems in his relationship with Janet. Nick receives a great job offer that should take him far away from Knights Ridge. Hannah is arrested for assaulting Ray's ex-wife Christine.