In the first season finale, Val gets home from work only to find Holly and Henry in Holly's room---with the door closed! Val worries that Holly and Henry have slept together. She lectures Holly about sex. But when Holly comes home from the movies, she walks in to find only Val and Jeff in the shower together, making Val look like a hypocrite. Gary keeps ditching Holly to spend time with his girlfriend.
Upon learning that Val has a reputation for being antisocial at work, Holly encourages her sister to mingle with her colleagues. However, an evening out becomes fodder for office gossip when Val finds herself in a compromising position with her boss Vic. Meanwhile, Jeff meets the attractive Olivia-but is shocked to find out that she is Gary's mother.
Holly ditches school with Henry and borrows Val's car, but is shocked when she returns from the beach, to find the car gone! She tries to cover it up and act like it is gone, but Val soon finds out. They have a talk, and Holly admits to it, while Holly tells Val she has learned that Val takes $20 out of her allowance each week. Holly is mad, but then she finds out that, along with $30 of her own that Val puts in, that $20 is in a secret account for Holly's college. Jeff is trying to find a new job, when his dad decides to close their resteraunt.
Holly has a major crush on a cute college guy named Evan and he's been coming in everyday at "Copy That" to get some coffee but Holly gets a chance to actually know him when she "accidentially" takes Evan's cell phone and gets invited to a college party to swap phones. Gary wants to come too, but Holly doesn't want him to interfere. However, despite Holly's wishes, Gary shows up at the party as a co-ed to get in with the college girls. Meanwhile, Val starts to get a little competitive at Scrabble.
Determined to start their own Thanksgiving tradition, Val and Holly cancel plans with their relatives, claiming that Holly is sick. However, the girls' happy day goes awry when the family arrives at their apartment to surprise them. Meanwhile, Jeff and Gary go on a mission to find the perfect turkey for Val.
Holly lands a job at a copy shop where she thinks her new co-worker, Jake, is interested in her, but when she takes Jeff's advice on how to handle the situation, she becomes the laughing stock of the store. Meanwhile, Val is nervous about landing a new account and impressing her prospective new client.
Holly becomes smitten with a young man, Kyle, who is leading a protest movement to allow the zoo's performing parrot to retire, but things fly out of control when Kyle is so inspired by Holly's passion for the cause that he kidnaps the parrot. Meanwhile, Val plays matchmaker for a customer who reveals she has a crush on someone in the restaurant, until it is revealed that the object of her affection is Jeff.
Holly and Val battle over the possession of a stuffed teddy bear they both cherished during their childhood. But when the struggle for the bear becomes too much, the girls agree to give the critter to a little girl in the building, though after they discover she is abusive and destructive to their childhood treasure, they join forces to regain the bear.
Val has trouble adjusting to Holly's care-free attitude, so she makes her follow a strict set of rules. Holly does her best to follow them, and realizes that she just can't do it. This leads Holly and Val ti the conclusion that Holly is nothing like Val, which is why it is hard for Holly to adjust to the rules that Val has carefully thought of and made up. So Val and Holly question why they ever became roommates.
Holly and Val plan a day of at the spa, but Holly finds herself in a 'muddy' situation when she sneaks out of the spa without Val's knowledge in order to meet J.C. Chasez from *NSYNC. Holly must somehow get back inside after being denied re-entry by a security guard. Being Holly, you know she always finds a sneaky way to do things, so she climbs in through a window landing in a mud bath with a naked lady! Meanwhile, Jeff and Gary have an afternoon of male competition after Gary calls Jeff old.
When her father accepts a promotion overseas in Japan , high-spirited 16-year-old Holly has no plans to head to Japan with him. She decides she'd rather live in the New York City with her "straight-laced" sister, Valerie. In the opener, Holly's attempts to prove herself a perfect roommate backfire when she misinterprets a remark about Feng Shui and rearranges the apartment. To make matters worse, Holly jeopardizes Val's job with a marketing firm when she disrupts a promotional event featuring skateboarder Tony Hawk.