Matt and Andy mix like oil and water with Joe, who means to collect his share of their late father's garage.
Taking Joe's advice nets Andy a new friend, but leaves Matt uncool at school; and Joe is anything but cool when he shirks his responsibilities for a free-spirited woman of independent means.
Matt goes overboard trying to impress a girl; Joe warns Lou about an art dealer with connections who has convinced her he's interested in her junk sculpture.
An old girlfriend from high school visits Joe and he invites to spend the night. Matt accidentally sees the girl get out of the shower, causing Claire to tell Joe he is setting a bad example for the younger boys. Andy, meanwhile, can't face telling Claire that he isn't ready to go to a sleepover birthday party at a neighbor's house and winds up sneaking downstairs to Joe's room to avoid his mother, ending up spending the evening with Joe's girlfriend instead.
Matt and Joe get into a heated debate over which of them should date Matt's forensics teacher after a field trip, Andy blames himself for the crack in the Liberty Bell.
Joe's merciless teasing destroys Matt's confidence for his role in ""A Midsummer Night's Dream"" -- as a sprite. Joe could use a confidence-builder himself after agreeing to a nude-modeling gig for Lou's art class.
A fortuneteller gives Joe a Halloween scare, as does Andy's ""disappearance""; Claire goes solo to a party; and Matt endures the taunts of college-age trick-or-treaters. All this goes on while Lloyd watches the ""scariest movie ever made"": The Sound of Music.
Lies and deceptions multiply ""like tribbles"" when Lloyd meets a potential sweetheart on the Internet, and Matt tries to hid a blemish in anticipation of a first date.
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.
A conspiratorial Lloyd locks up Joe and Lou in the storeroom on a day that Lou has arranged a blind date and Joe has promised to aid Matt in a date with destiny -- a fight with a school bully.
Joe makes an executive decision to expand Roman Customizing by signing a new account -- one that Claire had turned down before she and others in the house came down with chicken pox.
Matt hopes to shed his boring image by catching the action at a salsa dance club, where his mom and Lou suddenly show up; and so do Joe and Andy, who swing by in a Batmobile-style cruiser.
Christmas morning promises to be a big disappointment for Andy, who entrusted Lloyd to relay his gift wish to Santa -- but now wonders if his brother really delivered it.
Dissatisfied with their respective dates, Joe and Lou introduce the two on a double date -- and wait for nature to take its course.
Lou weighs a heavy decision after accepting an engagement ring from her boyfriend; Matt's sarcastic new friends rib Lloyd.
Matt wants to play Philadelphia's Lucky Burger clown -- for the money; Joey wants to join the motorcycle-racing circuit and follow in his father's footsteps, which worries Claire.
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.
The younger Roman brothers consider their Designated Dad Jack a delightful companion, but to Joe he's an interloper in the family.
Perched at a bar on his 21st birthday, Joe reminisces about his dad and about turning 16, while at home Claire and the gang plan what they hope will be a nifty surprise party -- but Joe ruins the surprise by coming home drunk.
The boys fend for themselves when Claire goes to a spa for the weekend.
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.
Claire has butterflies as she prepares for a first date. So do Matt and Andy, who fear that a newcomer will replace their dad.
Both Joey and Matt ask Andy's new baby sitter for a date.
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.
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; and 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 -- which winds up being staged in the garage.
Matt hopes to reinvent himself for a newcomer visiting her grandfather in the neighborhood; Andy fears getting hit by a comet.
Lloyd quits the garage to fulfill his dreams after he sees a self-help video.
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.
Joe is reunited with old friend Nell Bascombe, who needs a new kidney.
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.
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.
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.
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.
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.
Mother's Day brings a surprise visit from Joe's hippie mom, who's pregnant and married to an ""aura-photographer"".
