The boys fend for themselves when Claire goes to a spa for the weekend.

Perched at a bar on his twenty-first birthday, Joe reminisces about his dad and about turning sixteen, while at home Claire and the gang plan what they hope will be a nifty surprise party.

Claire has butterflies as she prepares for a first date. So do Matt and Andy, who fear that a newcomer will replace their dad.

Joe and Lou agree to be just friends and date others, but Joe fumes when Lou dates someone he doesn't know. He then unwittingly asks out Lou's best friend.

Both Joey and Matt ask Andy's new babysitter for a date.

The boys' lovable grandpa Big Mike rolls into town in a big rig and for a time endears himself to Joe with some promises he can't keep.

Lloyd's RV-driving mom visits as Joe is pushing to enter Andy in a pine-box derby to prevent a business rival's son from beating Matt's previous winning record.

Andy figures he won't get into any more trouble in school if Joe dates his teacher. Claire meets a potential date at the supermarket. Psychology student Matt fears he may have obsessive-compulsive disorder.

Joe regrets the path his life has taken after running into a once-unpopular classmate who's now headed for rock stardom.

Andy's excited about wearing his wilderness badge from the Young Pioneers, but his enthusiasm is dampened when a storm cancels his planned camping trip.

A merciless driver's-ed teacher may have Matt's future in mind when he passes out grades, but Joe has only revenge in mind when he rallies Matt, Lloyd and Lou in a payback prank on the man.

Lloyd quits the garage to fulfill his dreams after he sees a self-help video.

Even Joe agrees with Claire that the new girl in Matt's life seems to be out of his league, frequenting after-hour rave parties and drinking.

Matt's new girlfriend wants him to get a tattoo.

Joe is reunited with old friend Nell Bascombe.

Matt hopes to reinvent himself for a newcomer visiting her grandfather in the neighborhood; Andy fears getting hit by a comet.

Kristin gets Matt a job at a music store, but his future there looks bleak when the manager collars a shoplifter.

Romance is in the air at the pizza parlor as Matt's co-worker falls for Joe and Andy falls for a young girl who doesn't think his jokes are funny.

Andy becomes Joe's good luck charm on a trip to Atlantic City. Meanwhile, bad luck crashes the scene when Matt throws his first big party.

Joe moves in for the kill after Matt claims he's just friends with Kristin; an ice-cream vendor is a real treat for Andy and Claire.

Matt and Joe nearly come to fisticuffs over Kristin, who's unable to handle the truth when she hears it; and Lou receives an e-mail message from an admirer.

Mother's Day brings a surprise visit from Joe's hippie mom, who's pregnant and married to an aura-photographer.

Julia returns hoping to strike up a relationship with Matt again, but his friends aren't part of her plans. Meanwhile, Andy sells his childhood at a garage sale.