Charlie decides to return to therapy after a bad run-in with his ex-wife's new boyfriend.
Charlie deals with a ghost from his baseball days when a woman he slept with shows up as a patient.
Charlie challenges his group to do 36 hours of sleep-deprivation therapy.
Kate starts a war when she steals one of Charlie's group patients.
Charlie falls for Jen's new business partner; Patrick asks Charlie to counsel his mother's ghost.
Charlie starts covertly dating a brilliant coffee-shop barista who is a patient of Kate's.
One of Charlie's patients from his prison anger therapy group shows up; Jennifer dates an ex-con.
Charlie evaluates his involvement with his patients when he helps a patient hook up with a woman.
Charlie gets a visit from his hypercritical father; Charlie attempts to help Lacey with road rage.
Charlie and Kate's sexual episode leads to complications when he innocently asks her to a movie.