Alan is torn between the bad influence of Jake's new friend and the hotness of his mother.

Alan tries for an intimate night at a hotel with his new girlfriend, while Charlie takes a different approach to obtain the "girlfriend experience"

When Jake finds out that Alan has been dating Eldridge's mom, he packs up and heads to Judith and Herb's. Meanwhile, Charlie decides it's time to cut back on boozing.

Charlie is willing to do anything for Alan to accept Lyndsey's offer to move in with her.

After moving in with Lyndsey, Alan continues to have a rendezvous with Melissa at Charlie's house.

Lyndsey and Eldridge move into Charlie's house after their home burns down.

When Charlie's ex-girlfriend Courtney is released from prison, he treats her to the good life despite her having been in prison for conning him.

Depressed after his breakup from Courtney (Jenny McCarthy), Charlie goes to see his psychiatrist (Jane Lynch).

Obsessed and believing her to be married, Charlie starts stalking Rose. Jake and Eldridge start taping themselves doing Jackass-style stunts.

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.

Zoey tries to convince Walden to cut his hair and shave; Alan and Lyndsey revive their relationship.

Walden tries to loosen Zooey up by sharing some of Berta's special brownies.

Alan and Lyndsey introduce their mothers. Jake and Eldridge get a ride from Walden to a party.

Walden breaks the news to Zoey that he is going into business with his ex-wife. Alan and Lyndsey try to cope with their mom's 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

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.