When Charlie's fiancée, Chelsea, convinces him to let Melissa, Alan's girlfriend, move in, the girls take over the house. ...

Chelsea encourages Charlie to help his ex-fiancée Mia launch her music career, but does he still have feelings for her? And what if she's a terrible singer? Meanwhile, A ...

Chelsea is jealous when Charlie's ex fiancé, Mia, calls him--perhaps rightfully so. Meanwhile, Judith goes into labor, Herb is incapacitated, and Alan runs into his ex-g ...

Charlie is angry when Alan and Chelsea become good friends, until he figures out how to use the situation to his advantage. ...

When Chelsea's lease is up, Charlie reluctantly agrees that they should live together, but he has second thoughts about everything once the moving in process begins and C ...

Chelsea sets up Alan with her new friend Rose--the same Rose who stalked Charlie for years. But to Charlie's surprise, the two of them hit it off. ...

Charlie is disturbed when his mother meets Chelsea and starts spending time with her, but he has a plan for revenge. ...

Charlie, Alan and Herb get together when they all have problems with their significant others; Charlie with Chelsea because of some topless photos an ex of his sent him, ...

Charlie has trouble trying to take care of Chelsea when she gets sick. ...

Charlie is so desperate to get Chelsea to return his accidental I love you and not lose control in the relationship that he is willing to propose to her just to make her ...

Charlie needs Alan and Jake's help getting rid of the drunk, half-naked bimbo passed out in his bed when his girlfriend tells him she's coming home early from a funeral. ...

Charlie's big mouth and lack of attention to details gets him in couples counseling with his girlfriend. ...

After his family acts mean-spirited during Alan's surprise birthday party, Alan decides he's had enough and moves in with his girlfriend and her mom. ...

Judith is pregnant, Alan believes he is the father, and Judith tries to keep him away from Herb. Meanwhile, Charlie tries to figure out why Jake is so irritable. ...

Alan considers hooking up with his receptionist--until he meets her mother, and Charlie and Jake fight for the affection of a beautiful woman ...

Charlie contemplates making some changes in his life after an old buddy and partner in crime drops dead on the balcony of his beach house. ...

When Evelyn offers to pay for Jake's college education and a car, Charlie suspects that she has an angle to play. ...

Alan realizes what a babe magnet Charlie's car can be while Charlie is left with the neighbor when his daughter disappears with Jake. ...

Charlie's month-long relationship threatens to go down the tubes when she asks him to spend the night at her house instead. Alan grounds Jake for mooning some girls on a ...

Alan and Judith start seeing each other again after Judith's breakup with Herb, Herb continues to turn to Charlie for help picking up women, and Charlie messes with Jake ...

Alan is overjoyed when he learns that Judith and Herb's marriage is on the rocks, but he gets more than he bargained for when he tries to fake-comfort her. Meanwhile, Her ...

Charlie gets more than he bargained for when he tries to make amends to one of Jake's old teachers that he dated, who went off the deep end and became a stripper after he ...

Alan is angry when Charlie hooks up with his secretary because he knows that the situation will end badly for him after their inevitable breakup. ...

Alan tries to date two women at once and Charlie tries to learn how to cook. Jake tells Alan that he's studying with a friend, but he gets drunk instead. ...

Charlie kicks Alan out the house again after Alan demands that Charlie pay him back the $38 he owes him. Alan and Jake are now forced to turn to Judith and Herb for a tem ...

Charlie runs into an ex with a child who looks and acts a lot like him. He begins to suspect that he is the child's father. ...

Alan has a crush on Charlie's new older girlfriend and Charlie discovers that he dated his girlfriend's son's fiancée. Meanwhile, Alan tries to get Jake to study for his ...

Hoping for an earthquake to undo his Shakespeare assignment, Jake left it till the last weekend, without Taming the Shrew. Alan drags him to the bookstore, not that a cop ...

While Evelyn still enjoys the wedding reception, Charlie finds her latest husband Teddy dead on bed, pants down and skull smashed. He and Alan have no choice but to infor ...

Alan plays wedding planner for his mother, Evelyn and Teddy, who waves a prenuptial, while the Harper boys discover their mother is very rich too. Charlie finds himself c ...

Alan points out Charlie's serial dating, daily, is getting excessive, even by his standards. Even bloody noses from cuckolded-hubby fists and a sorely overexerted scrotum ...

Alan is through with disastrous 'romantic' dates, so he gets Charlie to find him a cheap/classy hooker. Jake can only get a date with young Milly by agreeing to double-da ...