Alan confesses his true identity to Larry and has to face the consequences.

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 stumbles upon an opportunity to make money. Meanwhile, Walden has to address his co-dependency issues.

Walden reconnects with Kate and is sure she's "The One" - that is, until he meets Vivian and becomes convinced she's "The One." Meanwhile, Alan and Gretchen grow closer.

Walden gets an invitation to his ex-girlfriend's boutique opening. Meanwhile, Gretchen wants to spend more time at Alan's house.

Lyndsey discovers that Alan is sleeping with Larry's sister, Gretchen. Meanwhile, Walden struggles with telling Barry to find his own place.

"How To Get Rid of Alan Harper"- Walden suspects his new girlfriend is cheating on him. Meanwhile, Alan gets even more intertwined in Lyndsey and Larry's relationship when he starts dating Larry's sister, Gretchen.

Alan gives Lyndsey the option of choosing between him and Larry. Meanwhile, Jenny fears she and Brooke are growing apart.

Alan learns that Lyndsey broke up with Larry and didn't tell him. Meanwhile, Walden sets out to prove that he's a man's man.

After Marty proposes to Evelyn, Walden and Alan throw him a bachelor party with several of his old friends.

Alan lets Lyndsey's boyfriend Larry set him up on a date. Meanwhile, Walden offers to help Nicole with her software project so she'll have time to date him.

Walden joins his beautiful former employee on a brilliant new project. Meanwhile, Alan advises Jenny to open up to her girlfriend or risk losing her.

Walden helps Jenny get a second date with a one-night stand and Alan's transgender girlfriend's ex-wife hits on him. Meanwhile, in the spirit of the holidays, Alan receives a Japanese delicacy from Jake for Christmas, and Walden's Malibu house is alive with questionable Christmas carol lyrics.

Walden's date with an accident-prone model goes longer than expected. Meanwhile, Alan dates a woman who shares some surprising personal information with him.

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

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

When Alan learns Walden knows Lynda Carter, he asks him to set him up on a date with her. Against his better judgment, Walden agrees to invite her to the house for dinner.

Alan befriends Lyndsey's boyfriend in an effort to find out what he has that Alan doesn't. Meanwhile, Walden helps Jenny be more proactive in pursuing her acting career.

Walden starts partying with Jenny and her hot friends. Meanwhile, Alan and Lyndsey's illicit affair is jeopardized.

Walden and Alan think it may be time for Berta to retire when she injures her back at work.

When Walden feels cramped in his own house, Jenny moves in with Evelyn and her boyfriend, Marty. Meanwhile, Alan becomes Lyndsey's "other man".

Alan is shocked when Charlie's 25-year-old daughter shows up at Walden's beach house to connect with what's left of her family, and who happens to like everything her dad liked - including women.