In order to survive, Emily and Victoria must set aside their grudge, while Jack and David race to save them before they kill each other.

Emily helps Nolan’s blushing bride deal with the skeletons in her closet while Victoria contends with a mysterious new socialite.

When Margaux uses her ammunition against both Emily and Jack, their friendship takes a dramatic turn. Meanwhile, Natalie shows Victoria the true reason behind her arrival in the Hamptons.

Natalie throws a Fourth of July party and invites David as her date. Ben turns to Emily and Nolan for help when Margaux threatens his ex-wife. Lyman after failing to help Victoria turns to someone else and it turns out deadly.

Emily strives to clear Jack's name; Louise and Nolan are visited by officer Ben Hunter. Emily thinks Margaux is behind it. Jack's mother comes to defend him. And with Emily they try to prove Jack's innocence. Emily asks Victoria to talk Margaux.

While dealing with grief, Emily is faced with collateral damage; Victoria goes after a new lead.