Mariah "Mo," a biracial Black woman, is a pro at taking care of her friends' feelings before her own, but now that she's approaching 30, it's time for Mo to take up space and become the main character of her own life - all while in the bathroom of her best friend, Britney's, 30th birthday party.

Newly married Marcus and Emily invite Ron and Kyla, who are also newly married with a baby, to join them at a Caribbean resort, where Marcus is meeting with the owners about a construction contract for a Chicago hotel. But when the party begins the couples' relaxing vacation quickly becomes a wild adventure.

On the heels of a professional and personal setback, Atlanta chef Emma travels to Hawaii, where she meets Ben, a reclusive surf instructor.