Season 9 - Episode Guide

Ashton Kutcher joins the cast as Walden Schmidt, an internet billionaire with a broken heart.

Judy Greer is introduced as Bridget, Walden's ex-wife.

Alan prepares Walden for a date with Bridget, while Jake decides to emulate Walden and drop out of school.

Trying to rebound from his recent separation, Walden goes looking for Mrs. Right, while Alan has an opportunity to reconcile with Lyndsey.

Alan struggles to come to terms with Lyndsey's risque movie past, and Walden tries to cheer him up by throwing a party at the house.

Walden receives divorce papers from Bridget, but forgets his depression when he meets a girl who looks eerily like her.

Jake has a crush on his chemistry tutor, who has a crush on Walden. Meanwhile, Alan obsesses over the journal his brother left him in his will.

When Walden begins redecorating the beach house, Alan becomes overly emotional.

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

Walden hits it off with a British babe, but neither of them is sure he's ready to re-enter the dating world.

Walden is trying his best to impress his new love interest when Bridget reappears in his life.

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.

When Walden's ex-wife and his mother try to take control of his company, he tries to enlist Alan as an ally.

Zoey tries to coerce Walden into cutting his hair and shaving. Meanwhile, Alan and Lyndsey rekindle their relationship.

Walden tries to loosen up Zoey by sharing a couple of Berta's special brownies.

Strained relationships and girl-fighting result when a huge storm traps Walden, Alan, Zoey and Lyndsey in the house on Valentine's Day.

Walden and Zoey's relationship suffers after they share a near-death experience. Meanwhile, Alan wonders if Lyndsey has a drinking problem.

Things get tense in the Malibu house when Walden's estranged ex-business partner shows up looking to bury the hatchet.

Alan and Lyndsey introduce their mothers to one another. Meanwhile, Jake and Eldridge enlist Walden to drive them to a high school party.

Walden breaks the news to Zoey that he is going into business with his ex-wife. Meanwhile, Alan and Lyndsey try to come to terms with their moms' new relationship.

Walden's commitment is tested when Zoey and her daughter come to live with him. Meanwhile, Alan gets more than he bargained for when he moves in with Lyndsey.

After Alan suffers a minor heart attack, Charlie's ghost pays a visit to his hospital bedside.

Alan is showered with love and affection upon returning from the hospital, but Zoey isn't so sure it's deserved.

Jake is pressured to make a decision about his future.