9x12 One False Move, Zimbabwe

Walden's mother arrives and Alan is smitten with her, even as she reveals a secret about Walden's past that sends him into a downward spiral.

9x11 What a Lovely Landing Strip

Just as Walden appears ready to pursue a new relationship with Zoe, Bridget returns and says that she wants him back.

9x10 A Fishbowl Full of Glass Eyes

After Jake talks Walden into asking out a woman he meets at a supermarket, Alan considers hocking Walden's incredibly expensive wedding ring to get out of debt.

9x09 Frodo's Headshots

Upon his return from the "stress clinic," Alan finds out that Jake got his girlfriend pregnant, Walden and Lyndsey are sleeping together, and he has to move out immediately

9x08 Thank You for the Intercourse

Still emotional after Charlie's death and jealous over Walden's ability to pick up hot single women, Alan takes a break from reality and channels his inner Charlie.

9x07 Those Fancy Japanese Toilets

Walden hires Evelyn as his interior decorator, but Alan is convinced that she just wants to take advantage of him sexually. Meanwhile, Alan inherits Charlie's journal, and Jake has a crush on his tutor, but she has a crush on Walden.

9x06 The Squat and the Hover

Alan convinces Walden to see Charlie's old shrink after he gets his divorce papers from Bridget, but his spirits are soon lifted after he meets a lesbian who looks like her

9x05 A Giant Cat Holding a Churro

Lyndsey dumps Alan after he agrees to be completely honest about his past, and a stoned Walden tries to cheer him up by throwing him a party.

9x04 Nine Magic Fingers

Alan begins working on getting Lyndsey back, but his days at Walden's place may be numbered after Walden hooks up with Charlie's gold-digger ex girlfriend, Courtney.

9x3 Big Girls Don't Throw Food

While preparing for a romantic dinner with his wife, Walden accidentally talks Jake into dropping out of school.

9x02 People Who Love Peepholes

Walden buys Charlie's house and hires Berta as his live-in housekeeper, forcing Alan to move back in with his mom. However, Alan sees an opportunity to come back when Walden asks for advice about getting his wife back.

9x01 Nice to Meet You, Walden Schmidt

After the death of Charlie Harper, Alan faces the reality of moving out of his brother's beach house - until he meets a depressed Internet billionaire whose wife just left him.