Stacey can't wait! Her best friend from New York, Laine Cummings, is coming to Stoneybrook for a whole week. She can spend a day at SMS, attend club meetings, and maybe go to the Valentine Dance. But from the minute Laine arrives, nothing goes as planned. She thinks Stacey's sleepover with her friends is childish, and can't believe Stacey's still into baby-sitting. Laine's more used to hanging out at high school parties with her 15-year-old boyfriend.

It was good for Mary Anne and Logan to break up for a while. Mary Anne had some time to herself, and she's been having lots of fun with her friends. But now Mary Anne can't help it. She misses Logan. When she and Logan are both assigned to study their favorite author, Mary Anne thinks it will be the perfect, most romantic way for them to get back together. Until Cokie Mason, Mary Anne's mortal enemy, decides to steal Logan from her!

Mary Anne can't stop thinking about babies. First she starts baby-sitting for a pair of adorable baby twins. Then she and Dawn decide it would be great to have a baby brother or sister of their own. But Mary Anne learns that taking care of a baby is a big responsibility when she and Logan have to pretend to be parents to an egg "baby" for a class at school. Sammie, their egg, has to be watched every second, and Mary Anne and Logan barely have time to breathe. Taking care of a baby isn't all it's cracked up to be!

Little Rosie Wilder is perfect at everything. She can sing and dance, she plays several musical instruments, and her IQ is so high it's off the scale. So how did Claudia "C-" Kishi get stuck baby-sitting for Rosie the genius? It's because Rosie is so obnoxious that no one gets along with her - not even Claudia's sister, who's a genius, too. The baby-sitters think that Rosie needs to be taught a good lesson. But maybe what Rosie really needs is a good friend...like Claudia. 

Kristy's not too happy with some things at Stoneybrook Middle School. The hot lunches, for example, look like dog food, and Mary Poppins is such a babyish choice for their annual play. What the eighth grade really needs is a new class president. Someone who's organized and has great ideas - someone like Kristy! But can Kristy coach a softball team, keep up her grades, baby-sit, run the BSC, and be president? The baby-sitters are about to find out!

When Jessi volunteers to help supervise the Kids Can Do Anything Club, she meets nine-year-old Danielle. Danielle has a beautiful smile and a great sense of humor. And she has cancer. Jessi has never met anyone like Danielle before. Even though she's very sick, Danielle is courageous and hopeful. She even has two wishes. The first is to go to Disney World. The second is to graduate from elementary school. Jessi knows she has to be strong for Danielle, and so she makes a very special wish of her own.

The rest of the baby-sitters are shocked when Mary Anne, tired of being a plain Jane, gets a chic new haircut and a new wardrobe, and their reaction enrages the excited Mary Anne. 

Mallory loves horses. She loves reading about them. She loves writing about them. And most of all, she loves daydreaming about them.

Dawn has met Travis, an older boy, and she knows he's the perfect boy for her. But the baby-sitters think that smooth-talking Travis is no good and plan to tell Dawn just that.

Lately, the pressure's really been on Stacey. She hasn't been feeling well, her schoolwork and baby-sitting jobs are almost out of control, and she's sick of being in the middle of her parents' fights. Then it happens: Stacey ends up in the hospital because of her diabetes. The baby-sitters are worried. So is Stacey. Why are things always so hard?

The baby-sitters love getting new clients. So when the Lowells contact the club, everyone is thrilled. For Mary Anne, sitting for the Lowells is a snap, and the kids are adorable and obedient. But when Claudia meets the family, Mrs. Lowell will barely look her in the eye, and the kids are downright rude! The next time Mrs. Lowell calls the BSC, she requests another sitter - anyone but Claudia. Claudia has no idea what she did wrong, but the BSC won't rest until they find out!

Lately, Mary Anne's been feeling like she and Logan are spending too much time together. They fight over silly things. And Mary Anne never gets to do what she wants to do - like read, and baby-sit, and be with her friends. But when Mary Anne suggests that she and Logan see less of each other, Logan takes it all the wrong way. Could this really be the end for Mary Anne and Logan?

Since Stacey's parents got divorced, it hasn't been easy. Stacey hates being put between them, and she misses her dad sometimes even though she gets to see him often. And now both of her parents are depending on Stacey. They each need her badly. And she can't be in Stoneybrook and in New York at the same time. How will Stacey choose between her mom and her dad...again?

The baby-sitters just love little babies. So of course Kristy has the great idea of entering a float in the Stoneybrook Baby Parade. All the girls have to do is round up a bunch of adorable babies like Squirt and Emily Michelle, dress them in costumes, and plop them on a float. Easy, right? Wrong. The float looks like a big orange blob, the costumes are hideous, and the babies won't stop crying. S.O.S. - the baby-sitters' float is about to sink!

Of all the babysitters, Kristy's the last one anyone would expect to have a secret admirer. But someone is sending her mushy notes with hearts all over them.