Gemma and Hallie's world has come to a screeching halt. Their parents are engaged, which makes them step-sisters. Nothing in the world could possibly be worse for Gemma and Hallie--they won't let it happen. Even if it means putting their own feud aside to separate their parents. Events quickly escalate as a hurricane rips through the Hamptons leaving everyone (including Gemma's two exes, her current crush, best friend, and her nemesis) bottled up...

Devastated after a painful breakup, Gemma faces a Hamptons summer near a former best friend she wronged years earlier, a risk that compels her to assume a different identity and pursue a relationship with her former friend's brother.

When popular high school junior Madison's online profile is hacked, it sends her life into turmoil and forces her to reevaluate some important matters as she figures out who committed the crime.