When Alan discovers that Charlie is a member of an exclusive men's support group, he begs his brother to let him join.
Alan overzealously tries to push Judith's new relationship to the next level after Charlie mentions that he'll be off the hook for alimony if Judith remarries.
Charlie tries to save Jake from school suspension by romancing his teacher, with unfortunate results.
Charlie discovers that he made a big mistake when he lends Evelyn his Mercedes for a day in exchange for her hybrid car.
Charlie falls head over heels for a woman who is better at playing hard to get than he is.
When Charlie confesses playing a nasty trick on Alan when they were younger, Alan's self image is turned upside down.
Charlie and Alan employ Berta's crazy sister to cater a party that Evelyn has cornered them into throwing for her.
Alan meets a woman at the supermarket who introduces him to the kind of fantastic sex life Charlie is accustomed to.
Charlie's ex-girlfriend comes back into his life with a little more baggage than when she left.
Jake helps Charlie write a theme song for a new cartoon, and things heat up between Alan and Rose.
Charlie finds out that his promiscuous lifestyle has become the subject of an angry web site.
Alan's platonic high school girlfriend comes back into his life and creates contention between he and Charlie.
When Judith's pipes burst due to an earthquake, Alan invites her to stay with him at Charlie's house.
Evelyn takes drastic measures to get back into her sons' and grandson's lives after Alan forbids her to see Jake.
Charlie tries to take Alan and Jake to Las Vegas in order to distract Alan from an impending medical procedure.
An already stressed Alan is pushed to the limit when Judith leaves Jake with him while she goes on vacation.
After Charlie injures his back during sex, Alan takes him to the doctor.
Charlie makes Alan pose as his life partner at a business party thrown by a gay ad executive.
Alan goes on a date with one of Charlie's ex-girlfriends.
Unable to express the anger they have toward the women in their lives, Charlie and Alan take it out on each other.
Charlie, Alan and Jake accompany Evelyn to her second-husband's funeral.
Alan goes on a nightmarish blind date in order to repay a debt to his mother.
Alan reluctantly leaves Jake at Evelyn's for a sleepover and winds up partying with Charlie and a busload of beautiful female volleyball players.
Charlie unknowingly sleeps with an elderly man's hot young trophy wife.
