Charlie and Kate go to Charlie's sister's baby shower even though he hasn't seen her for ten years, and the group is convinced that Ed's daughter is a lesbian.

Charlie is convinced that his dad is faking Alzheimer's, and Nolan has a breakthrough with Patrick's help.

Charlie is interested in dating a sexy ex-patient after the five-year mandatory waiting period runs out, but he soon finds out that some of her other former therapists have the same idea.

Charlie comes down hard on his dad after he turns out to be a bad influence on his new friends. Meanwhile, Lacey helps Patrick out with an old high school bully.

Kate becomes jealous when Jennifer stays with Charlie for a few days.

Charlie decides to engage in deception therapy to help Ed deal with his anger issues, and Jennifer asks Charlie to hang out with Kate.

Charlie dates his daughter's teacher.

Charlie runs into problems after Cee Lo Green hires him as his personal therapist, and things unexpectedly heat up when Lacey hires Nolan to be her photographer.

Charlie and Kate are opposing expert witnesses in a trial, and Charlie gives Nolan homework to get in touch with his feelings.

Charlie's dad puts pressure on him to have Sam baptized in the Catholic Church.

Kate becomes jealous when Charlie starts dating his crazy ex, Lori. Meanwhile, the support group tries to find a rich boyfriend for Lacey.

Lindsay Lohan hires Charlie to be her anger management therapist on the set of a commercial, but Charlie winds up sleeping with her and gets her in trouble after the paparazzi get a hold of it.

Charlie may be forced to move the therapy group out of his house after Lacey gets into a fight with one of his neighbors, while Kate goes with Jennifer to help find a dress for Sam.

After Sam finds out her favorite horse is in equine therapy, Charlie has an idea for a bonding experience for his therapy group.

Two patients in Charlie's group get involved in a romantic relationship.

Charlie gets Nolan a job with Kate, and uses him to spy on her when Nolan discovers an envelope with dirty pictures in it. Meanwhile, Charlie has a support group created in prison for Lacey.

Problems arise when Charlie and his dad coach a baseball team together, and Kate takes over Charlie's group during his coaching gig.

Jennifer competes with Charlie when she becomes Patrick's "life coach," and Lacey helps Charlie's dad get a Facebook account.

Charlie's dad interferes with Charlie's relationship with Kate to get him back together with Jennifer, and Nolan helps Ed as his "anger buddy."

Charlie deals with Kate breaking up with him and Jennifer getting back together with her ex-boyfriend Sean. Meanwhile, Charlie's group volunteers at a soup kitchen.

Charlie sees a new therapist to deal with new anger issues with Kate, which may open up a new set of issues for Charlie. Meanwhile, the support group plays a trick on Ed for his cruelty.

Charlie and Kate begin work on a sex study. Meanwhile, Lacey starts a new job.

A judge orders Sean to Charlie's therapy group after he gets in trouble with the law, and Ed convinces Patrick to buy a television.

After his breakup with Kate, Charlie finds a woman who is satisfied with just being "friends with benefits," but is she really being completely honest with herself and with Charlie?

Charlie takes his group on a trip to Lake Tahoe to celebrate a milestone in their therapy, but he returns home early after he receives a text message from Kate.

When Charlie begins dating a woman he meets on a technical support call, her nerdy ex finds a way to make Charlie's life Hell.

Charlie begins dating a woman, not knowing that her brother is a serial killer from his prison support group.

Charlie suspects Jen's boyfriend is cheating on her with one of his patients. Ed and Patrick help Nolan after his apartment gets robbed.

Charlie goes behind Kate's back and pretends to be a sex surrogate for her 32 year old virgin patient, and Jennifer gets upset when Sam gets a tattoo.

Charlie has to deal with the aftermath when his father moves in with his patient, and they hit someone with their car. Lacey takes Nolan out to a club.

Charlie becomes jealous of Jennifer's new boyfriend. Meanwhile, Patrick helps Lacey prepare for a modeling gig.

There's a riot at the prison and Charlie is held hostage. Nolan, Lacey and Ed throw Patrick a birthday party.

After Charlie and Kate lose funding for their study, Charlie may have to make a big sacrifice to get new funding. Meanwhile, Nolan's new online girlfriend turns out to be 10 years old.

Charlie intervenes in Kate's sex life. Meanwhile, Martin offers relationship advice to Lacey.

Charlie and Sean plan an epic party. Meanwhile, Lacey accidentally gets Ed addicted to drugs.

Charlie and Nolan compete for a woman's attention. Meanwhile, Martin and Ed hatch a scam.

Charlie hires a psychologist to replace Kate in his sex study. Meanwhile, Jennifer and Lacey prank Sean.

Charlie hits on Jordan's A.A. sponsor when he discovers that she is a recovering sex addict, and Ed helps Patrick design an outfit for a full-figured woman.

A pimp joins Charlie's therapy group, and he pays for his services with one of his escorts' services.

A new patient in Charlie's group claims to be the Devil, and Nolan sells his soul to him to get Lacey to love him. Jennifer and Sam take an interest in their new neighbors, and Martin tries to get Charlie back to church.

Sean is jealous when Charlie keeps sleeping with Jen after he tells Charlie that he wants her back, so he looks to get revenge. Meanwhile, the therapy group helps to make Patrick unattractive so that he can find a new man.

Charlie suggests that Lacey and Patrick pretend to date in order for her to get her inheritance.

Charlie asks for a second chance with the woman to whom he lost his virginity, and Lacey and Patrick try to keep up appearances when Lacey's parents pay a surprise visit.

A problem arises when Charlie sleeps with a reporter who is writing an article about the sex study, while Lacey tries to take advantage of Nolan's lingerie store employee discount.

Lacey is sentenced to house arrest at Charlie's house, and Sean tries to help Michael pick up women.

Charlie's Christmas plans are put on hold when Ed steals a baby Jesus from a Nativity display, and Sean hits on Jordan on Christmas Eve.

A drunken binge gets Charlie in jail and an appearance before the Ethics Committee, and his therapy group searches for a new therapist to replace him.

Charlie convinces Jordan to pose as the fiancée of a member of his prison group, and Lacey and Patrick gamble away part of Lacey's parents' money.

Charlie sleeps with Jordan's twin sister.

Charlie and Sean fight over one of Patrick's friends, and Patrick agrees to sing a song with Jordan at one of her A.A. meetings.

Charlie tries to use Jennifer to play a trick an old friend who has become a priest, and another man could ruin Lacey and Patrick's sham wedding plans.

Charlie begins dating an El Salvadoran woman whose family wants Martin and Ed evicted from their apartment, and Sean offers to help Jordan with her research.

Charlie's license could be in jeopardy when he sleeps with the wrong secretary, and Nolan helps Lacey get rid of a mouse.

Charlie becomes interested in a woman who won't date him until he has an online date rating, and Ed helps Nolan ride a bike so that he can date Nolan's mom.

Charlie splits up with Jordan when she blows a chance to get their research published, and Lacey unknowingly moves into an apartment next door to Nolan.

Jordan has a plan to keep Charlie and Sasha from constantly sleeping with each other, and the guys in the support group give Lacey's apartment a makeover.

Jordan's actions with one of her subjects puts Charlie's prison study in jeopardy, and Sean helps Patrick make an audition video for a designer reality show.

How far will Charlie go to keep Lacey from ruining her ex's wedding? Meanwhile, Jordan makes a big mistake while taking care of Sean while he is sick.

Charlie sleeps with the girlfriend of a violent prisoner in his clinic, only to find out that the prisoner is being released the next day.

When Charlie breaks it off with a police officer he's been dating, she abuses her power to make his life miserable. Meanwhile, Jordan struggles to establish a casual sex relationship with Sean.

Charlie reluctantly hires an ex-con from his study as his plumber, who immediately takes an interest in Lacey. Meanwhile, Patrick looks for a way to avoid being the bad guy on his reality show.

Charlie surprises his group by bringing all of their dysfunctional parents to one of the sessions.

Sean tells Charlie not to have sex with his visiting sister, and Patrick and Lacey discover that they are dating the same man.

Problems arise after Charlie has a threesome with his girlfriend and one of her friends, and Lacey uses Jordan's help to try and sell her eggs.

After Charlie's big mouth gets Sean fired from his job at the strip club, he tries to get his job back without Sean knowing he got him fired.

Charlie plans to get some publicity for helping a man being released from prison 50 years after being wrongly convicted, and Jordan and Sean are worried about their arrangement getting more serious.

Charlie and Jordan pose as an unhappy married couple to catch a therapist who scammed Ed, and Nolan discovers that the African child he sponsored is all grown up and more successful than him.

Charlie asks Sean to date a woman to help him and Jordan get a keynote speaker gig, which upsets Jordan when she finds out. Meanwhile, Lacey pretends to be in a coma in her latest scam to make money.

The sexy new warden wants to cut Charlie and Jordan's prison therapy group, so Charlie tries to change her mind. Meanwhile, Nolan's new limo driver job puts him in an awkward situation with Lacey.

Charlie inadvertently helps a member of his prison group in an escape attempt.

Charlie's temper gets him suspended from his practice, and Jordan and Sean take advantage of the situation to play some pranks on him.

Charlie looks for revenge after fighting with the garbage man, and Nolan and Lacey compete for the same job.

Charlie and Sean discover that a private investigator is following them, and Nolan and Lacey move into Nolan's work limo.

Jordan tricks Charlie into sleeping with her sorority sister, and Patrick sees an opportunity when Lacey begins dating a record producer.

Charlie begins dating a private investigator, who challenges him to try and cheat on her without her realizing. Meanwhile, Lacey works as a nude model for Patrick's art class, causing Nolan to take a sudden interest in art.

Charlie begins dating his computer nerd ex girlfriend again, who then hacks into his computer and takes over his life. Meanwhile, Lacey launches a plan with Patrick to trick her rival into having sex with Ed.

Charlie helps Nolan confront his bullies but creates a monster, and Sean and Jordan try to use role-playing to spice up their love life.

Charlie lets his girlfriend turn his house temporarily into a halfway house for hookers, and Jennifer starts a new business selling used tea kettles online.

Charlie tries to help Patrick through a crisis of confidence by getting him stoned, and Ed and Lacey try to join forces to find a way to get revenge on Sean.

When Charlie tricks Lacey into believing her father is broke, she gets engaged to an obnoxious billionaire. Meanwhile Nolan makes a business arrangement with Sean's strip club.

Charlie tries to surprise Ed by inviting his wife to Thanksgiving dinner, but Ed shows up with his new girlfriend. Meanwhile, Jordan causes a scene at dinner because she suspects that Sean is cheating on her.

After a night of partying in Vegas, Charlie discovers that he got married to Sasha. Meanwhile, Lacey doesn't understand why Nolan won't have sex with her now that they're together.

Charlie needs to learn how to skydive to satisfy his thrill-seeking girlfriend, and Lacey and Patrick go into business together designing women's shoes.

Charlie wants to make a business deal with Jordan's ex-husband, but he knows Jordan won't go along if she knows the identity of the business partner. Meanwhile, Lacey gets jealous when Nolan tries to save a family of birds.

Charlie tries to get out of a wild dream so that he isn't late to officiate Ed and his wife's renewal of their wedding vows. Meanwhile at the prison, Wayne convinces Jordan that Cleo and Ernesto are conspiring against her.

A matchmaker sets up Charlie and Sean for a double date, but they each wind up with the wrong woman. Meanwhile, Jordan gets the lead in the prison production of "Romeo and Juliet."

Charlie tries to encourage Nolan to take charge to take charge of his life to improve his relationship with Lacey, but gets him fired from his job. Meanwhile, Ed and his friends con Sean out of his money in a card game.

Martin tells Charlie to stay away from his new girlfriend's sexy daughter, and Lacey pretends to be pregnant to get her grandmother's inheritance.

Charlie wants to fire his new associate because she always sides with Jordan, and Nolan gives up smoking pot to impress Lacey's parents.

Charlie has to make a decision between keeping his group and being a sports psychologist for a baseball team.