After Charlie's license is suspended, Jake becomes his driver; Alan plans to go to Chelsea's birthday party.

While Alan and Jake are away on a road trip, Charlie is visited by the ghosts of his ex-girlfriends

Alan tries for an intimate night at a hotel with his new girlfriend; Charlie tries his own approach to get the ``girlfriend experience.''

Alan is torn between the bad influence of Jake's new friend and the hotness of his mother.

Charlie has a return engagement with Gail (Tricia Helfer), Chelsea's best friend; Alan has a surprising effect on a female patient.

Charlie and Chelsea's break-up doesn't stop them from sleeping together again.

Charlie goes to Las Vegas and comes back to Malibu married.

Chelsea is put off by Charlie's jealousy.

Charlie suspects Chelsea likes the lawyer representing Alan after his arrest for a bar fight.

Charlie has a colonoscopy to avoid visiting Chelsea's parents, who he then finds in his house when he gets home.

Jake hopes to win back Celeste by writing her love songs. Alan and Herb hope to keep Judith from finding out they've become friends.

Charlie helps Jake cheat on his girlfriend while she's away for the holidays. Evelyn brings a television producer to Charlie's Christmas dinner.

Charlie finds out Chelsea's monetary situation is different from what he's been led to believe.

Alan attempts to solve thinning hair in cheapskate fashion. Chelsea reveals Charlie hasn't been pleasing her sexually as much as he thinks.

Chelsea's gorgeous roommate from college stays at the house to recover from a breakup.

Charlie and Alan awaken to find themselves in bed with a stranger.

Alan's advice to Chelsea that she get breast-reduction surgery is not met with enthusiasm by Charlie.

Public humiliation at the hands of Charlie and Alan has Jake refusing to stay at the beach house.

Alan starts working for Evelyn. Charlie tries to close the rift between Chelsea and Jake.

Alan cares for Judith's child and his ex-mother-in-law. An accident with Sir Lancelot provides Jake with a chance to blackmail Charlie.

Girls rule the roost after Charlie consents to Chelsea's desire to allow Alan's girlfriend, Melissa, to move in with them.

Charlie must make a difficult decision about his future and with which woman he wants to spend his life: Chelsea or Mia.