The gang is forced to put on their happy faces and reconnect at Max's swanky engagement party, where "severe awkwardness" is everybody's plus-one.

Sam tries to halt Jon's shaming campaign. Ethan and Lisa take a stroll down nostalgia lane. Nick makes an effort to act his age.

Sam, Nick and Marianne put on their dancing shoes. Lisa makes a surprising find. Max pushes Ethan to dip his toe into the dating pool.

Lisa and Charlie consider their future. Nick invites Lisa to crash his weekend with Merrill. Felix orders Max to stand up to Ethan.

The gang attends an extreme funeral, Ethan gets an earful from Felix, and the awkward encounters keep on coming for Lisa.

When Ethan and Sam go public, Marianne, Nick and Max take the opportunity to practice their "casual faces." Lisa receives shocking news.

Max and Felix's big day arrives -- and so does the drama as secrets are revealed, confessions are made, and poorly timed punches are thrown.