Upon his release from the hospital, Alan is met with a slew of challenges that test his ability to cope.

After a fight with Walden, Alan decides to move in with Herb.

Alan has a difficult time coping when Lyndsey breaks up with him.

Depressed on Valentine’s Day, Walden tries to talk Kate into giving him another chance; Alan’s holiday plans go south.

When Walden runs into his ex and they start talking about getting back together, Alan worries that she is not good enough.

Alan feels reluctant to make a commitment to Lyndsey, but an unexpected source inspires him; Walden enjoys being the boy-toy of a wealthy older woman.

When Berta takes a couple of days off, Charlie falls for her replacement. Meanwhile, Alan believes he’s being stalked by Lyndsey’s ex-husband.

Alans famous ex-wife, Kandi, wants to reconcile; when Berta isn’t interested in celebrating her birthday, Walden tries to make her day special.

Alan goes to great lengths to be able to get Lyndsey a nice birthday present.

Walden juggles his two identities; Alan ends up alone on Christmas.

Depressed after his breakup from Courtney (Jenny McCarthy), Charlie goes to see his psychiatrist (Jane Lynch).

Alan and Walden go to Kate’s fashion show in New York so Walden can reveal the truth about his identity.

Alan feels paranoid when Lyndsey becomes friendly with Charlie.

Alan is faced with relationship trouble when he does not give Lyndsey a key to the beach house; Walden, Alan, Herb and Billy commiserate about relationships.

When Jake finds out that Alan has been dating Eldridge’s mom, he packs up and heads to Judith and Herb’s. Meanwhile, Charlie decides it’s time to cut back on boozing.

Charlie is willing to do anything for Alan to accept Lyndsey’s offer to move in with her.

After moving in with Lyndsey, Alan continues to have a rendezvous with Melissa at Charlie’s house.

Alan and Lyndsey decide to spice things up in the bedroom.

Lyndsey and Eldridge move into Charlie’s house after their home burns down.

Despite Alan’s warnings, Walden starts dating Rose.

Alan tries for an intimate night at a hotel with his new girlfriend, while Charlie takes a different approach to obtain the “girlfriend experience”

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

Lyndsey finds out about Alan’s relationship with Gretchen; Walden has a difficult time telling Barry to find his own place.

Walden gets an invitation to his ex-girlfriend’s boutique opening. Meanwhile, Gretchen wants to spend more time at Alan’s (a.k.a. Jeff Strongman) house.

Alan’s girlfriend, Gretchen, insists he confess his true identity to Larry. Meanwhile, Walden goes on a road trip with Jenny and Barry to see his first car.

Alan must face the consequences after revealing his identity to Larry.

Jenny moves in with Evelyn and her wealthy boyfriend, Marty (Carl Reiner).

Alan and Lyndsey’s illicit relationship becomes jeopardized when one of Lyndsey’s man-hunting friends, Stephanie (Jennifer Aspen), asks if they are back together. The two staunchly deny it, then Lyndsey insists…

Alan tries to find out what Lyndsey’s boyfriend has over him; Walden helps Jenny pursue her acting career.

Walden and Alan find themselves on dates with two ideal women until Lyndsey’s jealousy throws a wrench in their evening.

Alan and Lyndsey’s illicit affair puts Walden in danger, forcing him to accept Rose’s help.

Lyndsey’s boyfriend sets Alan up on a date; Walden wants to help Nicole with her project so she will have time to date him.

Alan finds out that Lyndsey broke up with Larry without telling him; Walden tries to prove he is a man’s man.

Alan asks Lyndsey to choose between him and Larry; Jenny worries that she and Brooke are growing apart.

Walden thinks his girlfriend is cheating on him; Alan starts dating Larry’s sister, Gretchen (Kimberly Williams-Paisley).

After a fight with Walden, Alan decides to move in with Herb.

Alan has a difficult time coping when Lyndsey breaks up with him.

Alans famous ex-wife, Kandi, wants to reconcile; when Berta isn’t interested in celebrating her birthday, Walden tries to make her day special.

Walden juggles his two identities; Alan ends up alone on Christmas.

Alan and Walden go to Kate’s fashion show in New York so Walden can reveal the truth about his identity.