School's almost out, and Belly's excited for another idyllic summer in Cousins with her boyfriend, Jeremiah. But her plans go off the rails after she learns a shocking truth.

In the wake of an earth-shattering betrayal, Belly tries to pick up the pieces. Caught in the crossfire, Taylor picks a fight with Steven that ends in disaster.

Belly and Jeremiah plan to keep their big news secret from their families until everyone is reunited in Cousins for Susannah's memorial garden ceremony. Everyone, except for Conrad.

Alone in Philly, Belly turns 21. But her special day turns sour when family disagreements about her future take center stage.

With Jeremiah stuck at the office, a reluctant Conrad gets roped into wedding planning with Belly. En route to New York for a new career opportunity, Steven finds himself with an unlikely travel companion.

Now that Adam's onboard, the wedding is growing bigger by the day and Belly's overwhelmed. But after a surprise at her bridal shower, things finally start looking up.

What happens in Cousins, stays in Cousins. Belly and Jeremiah hit the town with their friends for a last wild hurrah. But as the alcohol flows, the secrets come out.

It's Belly and Jeremiah's wedding day, but Conrad's late-night beach confession could throw a wrench in their happily-ever-after. With emotions running high and time running out, Belly has a decision to make.

In the aftermath of the wedding, Belly makes a choice that leads her on a wild adventure and forever alters her future. Meanwhile, Jeremiah struggles to make peace with Conrad and accept his new circumstances.

A year is a lifetime as Belly builds her new life in Paris. Back at home, Jeremiah tries to find his footing without her. And in California, Conrad still can't shake the thoughts of Belly.