Commercial jingle writer Charlie Harper is a wealthy bachelor with a house at the beach, a Jaguar in the garage and an easy way with women.

Unsure how to properly discipline Jake, Charlie ignores him after the child forgets to stop feeding the seagulls and leaves the door open. As a result, the gaggle of birds enters the house.

When Alan's attempt to provide Jake with a fun-filled father/son weekend backfires, Charlie tries to console his brother by taking him to a local bar and getting Alan totally inebriated.

Charlie's longtime cleaning lady, Berta, quits her job, and Charlie quickly realizes he can't function without her. Alan tries to take Berta's place but doesn't succeed.

After a drunken night in Las Vegas, Charlie reluctantly attends one of Jake's soccer games. But Alan and Charlie soon discover the advantages of going to these matches.

Charlie rethinks the way he treats women when he, Alan and Jake are forced to cheer up a pitiful Evelyn after her serious new boyfriend terminates their relationship.

Charlie's beautiful friend Cindy frequently showers at Charlie's house after surfing. Jake sees a butterfly tattoo on Cindy's partially nude behind and later draws a picture of it.

When Alan and Judith argue during a rehearsal of a play that Jake and his classmates are rehearsing, Charlie is forced to handle a roomful of fourth graders alone.

Charlie likes his sweet new girlfriend, Wendy, but he becomes concerned when Jake forms a strong friendship with her. Wendy charms Evelyn as well.

When Charlie finds out that his favorite former girlfriend, Lisa, is getting married, he desperately tries to prove to her that he has become a better family man than her fiancé.

Charlie and Jake convince Alan to get a makeover when it appears Judith is moving forward since the breakup, sporting a new hairdo and new date.

When Charlie's cleaning woman, Berta, brings her sexy and rebellious 16-year-old daughter, Prudence, to Charlie's house, Jake develops a childish infatuation with her--and Charlie and Alan try to restrain their interest in the flirtatious minor as well.

Alan worries that Charlie will become infected with Jake's contagious cold; however, Alan gets sick instead. Jake heals, and Charlie is fine.

When Charlie learns that his credit rating is ruined, and his debts are all overdue, he discovers that his accountant, Stan, is completely inept.

Charlie and Alan find Frankie, a sexy but seemingly crazy woman, hitting a car with a baseball bat. Despite Alan's warnings, Charlie becomes totally infatuated with her.

Frankie, the beautiful and intriguing lady whom Charlie and Alan brought home after finding her bashing her therapist's car with a baseball bat.

Alan offends Charlie by choosing their crazy cousins as Jake's guardians if he and Judith were to die. Later, Alan does some errands and leaves Jake with Charlie.

Charlie agrees to meet with a former girlfriend who ended their relationship years earlier, leaving Charlie devastated. But Charlie's in for a huge surprise.

Judith's sinister-but-sexy sister, Liz, plans to attend Jake's 11th birthday party. Alan asks Charlie--who had sex with Liz in the coatroom at Judith and Alan's wedding--to behave.

Jake becomes a brooding musician when he continuously plays "Smoke on the Water" on his guitar with an ever-present grumpy attitude. In order to cheer him up, Alan tries a father/son chat.

Alan takes Charlie to meet with his sexy and determined divorce attorney, Laura, after Judith expresses concern that Charlie is a bad influence on Jake.

Alan succumbs to Judith's demand that they take Jake to therapy every week because it's what all the other divorced parents are doing, but he doesn't realize that he, too, is having issues.

When Jake imitates one of Charlie's sexist remarks in front of Judith's support group, the women decide that Charlie's home is an unfit environment for the child.

One of Charlie's many women fears she's pregnant. When Alan realizes that this is not Charlie's first pregnancy scare, he suggests a permanent solution for Charlie--a vasectomy.