Mrs. Philbert decides to attend her high school reunion, but Tom won't be able to take her. John tries helping out but old high school rivalries make John wish he had stayed at home.
During Kirk's attempt to seduce newcomer to the group Mary Beth, Mary Beth becomes the aggressor, but Kirk is unable to perform. Kirk then develops anxiety about rejoining the group for fear that Mary Beth will reveal his impotence.
Kirk invites John to accompany him on a ski trip for two that Kirk has won. John encounters a man with whom he connects and spends all his time on the trip with that man while ignoring Kirk.
The group members panic and the group becomes dysfunctional when new attendee Lionel announces that he has been in prison for the murder of an IRS agent.
Despite the good salary and rewards of being an editor for a publisher, John has misgivings about his new job because his former admiring female student who hired him expects romantic reciprocation.
Louise reluctantly agrees to let John watch her baby, so Kate and Mary Beth can treat her for her birthday. John along with Kirk and Ralph go to get Louise a baby portrait at a photo study where the baby is switched.
John skips the group meeting persuaded that he has become too dependent on it by the coach who wants him to join a poker game. In John's absence, the group debates whether the group is an addictive force curbing their progress.
The support group prepares a birthday party for Kirk only to realize that he might be lying to them about the day of his birth. Kirk decides to come clean when his secret wife from India shows up. Or does he?
Angry at his uncaring father, Red's troubled teenage nephew Danny visits her and asks to stay with her. The support group offers help, so he stays with some of them. However, he connects only with Kirk, whose bad influence worries Red.
A divorce lawyer joins the group as a new member. He convinces Kate and John to sue their exes who are exploiting them. Hyped by this, John even decides to help his students cheat on a test in order to win the teacher of the year award.
Kirk arranges for John to accompany him on a double without telling John that they are substituting for male escorts which discovery mortifies John because he has felt a genuine connection with his date.
Motivated by the group's discussion of the legal complications of John's donation for Wendy, Ralph. Kirk and John break into the sperm bank to clandestinely retrieve the sample.
Kirk is reluctant to accept the apology of his priest brother who has come to the community center to make amends for sleeping with Kirk's fiancée years ago. Kirk later has a change of heart and seeks John's help to heal the rift.
John arranges for the group members to attend his performance at a secondary venue of Carnegie Hall in which he will the clarinet he is just learning and then discovers that the other players are children.
John accompanies Kate to her aunt's funeral as a calming influence for Kate's hard feelings about her ex-husband who had taken control of the funeral and her family. Then Kate is blamed for an accident John causes for the ex-husband.
John reconnects with a female author who is in town for a book signing and with whom he had an awkward youthful romance which ended due to his lack of spontaneity and her impetuousness.
Usually perky Mary Beth suffers a bout of depression when, expecting a promotion, she is fired from her writing job. Kirk convinces an aspiring actress he is a director and blackmails John to assist him in the charade.
John's mother's news during a visit that she wants to move to a retirement home causes John concern for his mother's well-being. Kirk and Denise compete to provide John a painter for John's apartment.
A known actress with a sex addiction joins the group requesting anonymity. When a picture of her kissing John in a restaurant with a story about her secret appears in a tabloid, the future of the group is threatened by mistrust.
The betrayal of the actress' trust and its negative effect on John's career are revealed to actually be a plan for publicity on the part of the actress herself.
