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Walden dates an attractive 22-year-old (Hilary Duff), but ends up being more interested in her grandmother (Marilu Henner); Jake and Alan go on a trip.

Two and a Half Men

Cows, Prepare to Be Tipped

With encouragement from Walden, Alan decides to update his look; Alan is faced with a moral dilemma when he attracts a married woman.

My Bodacious Vidalia

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

Another Night With Neil Diamond

Walden and Alan are caught in the crossfire when Jake cheats on his girlfriend (Jaime Pressly) with her 18-year-old daughter.

Bazinga! That's From a TV Show

Alan and Walden end up partying too hard as they try to cheer up Herb.

Big Episode: Someone Stole a Spoon

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

The 9:04 From Pemberton

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

Throgwarten Middle School Mysteries

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

Advantage: Fat, Flying Baby

When Jake brings his 36-year-old girlfriend home for a visit, Alan is concerned; Walden tries to hide something from Alan.

Paint It, Pierce It or Plug It

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.

Run Steven Staven! Run!

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

Grab a Feather and Get in Line

Alan invests Walden's money in Kate's fashion line; leading a double life takes its toll on Walden.

Welcome to Alancrest

Chiropractor and single father Alan Harper lives in a beachfront house with divorced internet billionaire Walden Schmidt, who bought the house following the untimely death of Alan's brother, Charlie.

S10 E16 | Advantage: Fat, Flying Baby

E23 | Cows, Prepare to Be Tipped

E22 | My Bodacious Vidalia

E21 | Another Night With Neil Diamond

E20 | Bazinga! That's From a TV Show

E19 | Big Episode: Someone Stole a Spoon

E18 | The 9:04 From Pemberton

E17 | Throgwarten Middle School Mysteries

E16 | Advantage: Fat, Flying Baby

E15 | Paint It, Pierce It or Plug It

E14 | Run Steven Staven! Run!

E13 | Grab a Feather and Get in Line

E12 | Welcome to Alancrest