Charlie starts to lose control now that Mia's gone and Alan and Jake are back, and his frustration culminates in a violent confrontation with his new neighbor, Steven Tyler.
In the middle of a near-death experience, Charlie thinks he hears his father's voice tell him to take care of his mother, who is just about to have a "minor procedure" performed on her.
When Judith announces she is going to remarry, Charlie and Alan must convince her fiancé to proceed with the nuptials after he displays signs of cold feet, so that Alan can discontinue alimony payments to Judith.
After a bout with insomnia, Alan is escorted home from a midnight run on the beach by the local sheriff's department. Jake fights back when Charlie goes back on his word about not dating his friend's mother.
Charlie finally gets fed up with Alan always weaseling his way out of picking up a bill, and it only gets worse when he discovers Alan's secret stash of money.
Charlie's new live-in girlfriend is skating on thin ice with Berta because she threatens Berta's "alpha dog" status; Kandi lets Alan have sex with her again so that he won't sell the condo.
Charlie tries to set up Alan with the sexy and rich new next-door neighbor who is looking to settle down. But when Charlie discovers her secret history as a drunken slut, he decides to go after her himself.
After Charlie and Alan tell their mom that nobody loves her enough to attend her funeral, she replaces them with a new family, which makes both of them very jealous.
Alan thinks he's making his last alimony payment to Judith, but Judith's future sister-in-law could be putting the wedding in jeopardy. And things only get worse when she hooks up with Charlie.
Everyone suspects that Alan may be coming out of the closet when he becomes good friends with a gay man. But Charlie is actually the one who is suddenly feeling insecure about his sexuality.
When Alan has to go renew his driver's license, he convinces Charlie to help Jake with book report. But when Charlie takes Jake to the track, instead, Jake's horse comes in.
