Margaret Jacobsen is just about to step into the bright future she’s worked for so hard and so long: a new dream job, a fiancé she adores, and the promise of a picture-perfect life just around the corner. Then, suddenly, on what should have been one of the happiest days of her life, everything she worked for is taken away in a brief, tumultuous moment. In the hospital and forced to face the possibility that nothing will ever be the same again, Maggie must confront the unthinkable.

Sadie Montgomery never saw what was coming . . . Literally! One minute she’s celebrating the biggest achievement of her life—placing as a finalist in the North American Portrait Society competition—the next she’s lying in a hospital bed diagnosed with a “probably temporary” condition known as face blindness. She can see, but every face she looks at is now a jumbled puzzle of disconnected features. Imagine trying to read a book upside down and in another language. This is Sadie’s new reality.

Cassie Hanwell was born for emergencies. As one of the only female firefighters in her Texas firehouse, she's seen her fair share of them, and she's excellent at dealing with other people's tragedies. But when her estranged and ailing mother asks her to uproot her life and move to Boston, it's an emergency of a kind Cassie never anticipated. The tough, old-school Boston firehouse is as different from Cassie's old job as it could possibly be. Hazing, a lack of funding, and poor facilities mean that the firemen aren't exactly thrilled to have a "lady" on the crew.

Samantha Casey is a school librarian who loves her job, the kids, and her school family with passion and joy for living. But she wasn’t always that way. Duncan Carpenter is the new school principal who lives by rules and regulations, guided by the knowledge that bad things can happen. But he wasn’t always that way. And Sam knows it. Because she knew him before—at another school, in a different life. Back then, she loved him—but she was invisible. To him. To everyone. Even to herself.

Lanie Coates' life is spinning out of control.

She's piled everything she owns into a U-Haul and driven with her husband, Peter, and their three little boys from their cozy Texas home to a multiflight walkup in the Northeast. She's left behind family, friends, and a comfortable life, all so her husband can realize his dream of becoming a professional musician. But somewhere in the eye of her personal hurricane, it hits Lanie that she once had dreams too.

Hannah Brooks looks more like a kindergarten teacher than somebody who could kill you with a wine bottle opener. Or a ballpoint pen. Or a dinner napkin. But the truth is, she’s an Executive Protection Agent (aka "bodyguard"), and she just got hired to protect superstar actor Jack Stapleton from his middle-aged, corgi-breeding stalker.

Very pregnant and not quite married, Jenny Harris doesn’t mind that she and her live-in fiancé, Dean, accidentally started their family a little earlier than planned. But Dean is acting distant, and the night he runs out for cigarettes and doesn’t come back, he demotes himself from future husband to sperm donor. And the very next day, Jenny goes into labor.

When Robin finds out she's going on a work trip to Italy she can't wait for a week away in the sunshine, away from the daily grind. So what if there's a client pitch to do while they're there? The thing Robin is most excited about is the chance to show her work crush, James, what she's really like outside of work, and divert his attention from Liz, her work rival. To make things even better, Robin realises that the town they're going to in Italy is the same place that her childhood penpal, Andrea is from.

Helen Zhang hasn’t seen Grant Shepard once in the thirteen years since the tragic accident that bound their lives together forever. Now a bestselling author, Helen pours everything into her career. She’s even scored a coveted spot in the writers’ room of the TV adaptation of her popular young adult novels, and if she can hide her imposter syndrome and overcome her writer’s block, surely the rest of her life will fall into place too. LA is the fresh start she needs. After all, no one knows her there. Except…

Ruby Wood is perfectly happy playing the dating game – until she has a red-hot dream about her very attractive flatmate, Nick. He might spend every day saving lives as a junior doctor, but he’s absolutely the last man on earth that fun-loving Ruby would ever date! The solution? Focus on all of Nick’s bad points. And if that fails, up her dating antics and find herself a man. So what if she manages to make disapproving, goody two-shoes Nick jealous in the process…

As a third-year PhD candidate, Olive Smith doesn't believe in lasting romantic relationships—but her best friend does, and that's what got her into this situation. Convincing Anh that Olive is dating and well on her way to a happily ever after was always going to take more than hand-wavy Jedi mind tricks: Scientists require proof. So, like any self-respecting biologist, Olive panics and kisses the first man she sees.

Kristen Petersen doesn't do drama, will fight to the death for her friends, and has no room in her life for guys who just don't get her. She's also keeping a big secret: facing a medically necessary procedure that will make it impossible for her to have children. Planning her best friend's wedding is bittersweet for Kristen - especially when she meets the best man, Josh Copeland. He's funny, sexy, never offended by her mile-wide streak of sarcasm, and always one chicken enchilada ahead of her hangry. Even her dog, Stuntman Mike, adores him. The only catch: Josh wants a big family.

One typo, and a boy and girl connect by chance. Wishing each other a happy Valentine’s Day isn’t the end. In fact, it becomes a friendly annual tradition—with rules: no pics, no real names, nothing too personal. As years pass, the rules for their email “dates” are breaking, and they’re sharing more than they imagined—including the urge to ask…what if we actually met?

Like an avenging, purple-haired Jedi bringing balance to the mansplained universe, Bee Königswasser lives by a simple code: What would Marie Curie do? If NASA offered her the lead on a neuroengineering project—a literal dream come true after years scraping by on the crumbs of academia—Marie would accept without hesitation. Duh. But the mother of modern physics never had to co-lead with Levi Ward.

Lucy Hutton has always been certain that the nice girl can get the corner office. She's charming and accommodating and prides herself on being loved by everyone at Bexley & Gamin. Everyone except for coldly efficient, impeccably attired, physically intimidating Joshua Templeman. And the feeling is mutual. Trapped in a shared office together 40 (ok, 50 or 60) hours a week, they've become entrenched in an addictive, ridiculous never-ending game of one-upmanship.