Two And A Half Men: Season 12

When Walden has a health scare on Halloween, he tries to re-prioritize his life with the help of Alan.

Alan has second thoughts about getting married when Walden has him sign a prenup.

Alan and Walden must be perceived as a loving couple during a meeting with an adoption social worker. However, Lyndsey returns from rehab and makes their plans more difficult.

After the social worker signs off on them, a prospective birth mother visits Walden and Alan.

Walden looks after a foster child named Louis,but they don't bond the way he hoped they would.

Much to Walden's frustration, Louis successfully manipulates Alan, who cannot resist the opportunity to finally get to become the cool parent.

Walden and Alan befriend a group of sexy single moms while taking Louis out to play, which further complicates keeping up their charade.

Walden hopes to create the perfect Christmas experience for Louis, who has lost his faith in Christmas. But Santa, Alan's mom Evelyn, and Alan's cheapness threaten to ruin everything.

Walden and Laurel set up a playdate for their kids so they can pick up where they left off the last time they got together. Meanwhile, Herb asks Alan if he can ask Lyndsey out.

When Ms. McMartin discovers that Walden and Alan are pretending to be gay, she threatens to take Louis away. However, Alan has a plan to help her change her mind.

When Walden joins a support group for adoptive fathers, he discovers that it is a nice getaway from Alan.

Walden worries that Louis' adoption will be impacted when Alan breaks up with their social worker.

Walden discovers that Ms. McMartin is crazy and needy after they hook up, but he doesn't want to break up with her and mess up the adoption. Meanwhile, Lyndsey asks Alan to move in with her.

When their divorce becomes official, Walden offers Alan a gift. Alan's impractical choice strains his relationship with Lindsay.

Alan begins to suspect that Charlie is still alive, which is confirmed when he receives a threatening package and Rose tells the truth.