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

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's ""other person"" is someone he doesn't know -- and then he unwittingly asks out Lou's best friend. Puppeteer Marc Weiner appears as himself.

Both Joey and Matt ask Andy's new baby sitter 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 smarmy business rival's son from beating Matt's previous winning record.

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

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 pay-back prank on the man.

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, who needs a new kidney.

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.

Lou has some modern art she wants to take to the museum. So Joe helps her carry her work. A woman sees the artwork & thinks Joe did it. So he impresses her by doing some last minute art with help from Andy. Then Joe confesses that the artwork's Lou & not his & that all of these masterpieces were nothing at all. Also, Matt takes up playing the guitar & wants to write a song. Matt tries to find inspiration by his surroundings. When their garbageman Leo pays a visit, Andy tells him he's got a pigeon on his car. Then Matt comes up with a very bad song.

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 -- for a while. 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 for 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.

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.