Lisa and Ethan move to New York, reconnect with old college friends and learn that some secrets are harder to keep than others.

Facing a brutal deadline, Ethan brainstorms ideas for his Y.A. novel. Meanwhile, Sam, Lisa and Marianne meet some admirers out on the town.

Tensions flare, suspicions grow and mics drop at a lavish wedding reception, where Ethan takes his new persona out for a spin.

The gang gets together to celebrate Sam's 40th birthday, where Lisa suffers a crisis of conscience and Nick's announcement catches everyone off guard.