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.

Charlie is inspired to start a new clinic at the prison after Jordan wrecks their sex study.

When Charlie keeps choosing sex over work, Jordan convinces his girlfriend, Sasha, to cut him off for six months.

Charlie goes ballistic when a drunk Jordan makes out with a prisoner.

Charlie tries to keep Lacey from hooking up with a dangerous ex-con.

Charlie surprises his therapy group by bringing their dysfunctional parents to a session.

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 almost destroys Ed's marriage; Jordan hits on Nolan.

A matchmaker sets up Charlie and Sean with the wrong dates.

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.

Charlie lets his house become a halfway house for five hookers.

Charlie and Jordan hire a hot tie-breaker to work as their associate on the prison clinic program.

Charlie gets Sean fired from the strip club when he sleeps with a stripper.

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

Charlie falls into trap when Jordan sets him up with a heartbreaker.

Charlie's life is taken hostage by a controlling techy girl.

Charlie's father sets him up with a hot, but quiet Catholic girl who turns out to be too wild, even for Charlie.

Charlie and Jordan have to share a hotel room to expose a shady couple's therapist.

Charlie finds himself in a contest with a female private investigator to prove that he could cheat on her without getting caught.

Charlie takes on Cee Lo Green as a therapy patient.

Charlie begins seeing a new female therapist who used unorthodox therapy methods; Patrick tricks Ed into thinking he won the lottery.

Charlie's dad falls in with a bad crowd.

Jennifer moves in with Charlie temporarily and Kate gets jealous.

Martin has Charlie's daughter baptized behind Charlie's back.

Charlie takes the group on an equine therapy retreat.