17 years ago, little Amanda Clarke unwittingly witnessed a plot between her adulterous mother Victoria and her then lover, hedge-fund CEO Conrad Grayson, to frame her unsuspecting father David, his subordinate manager, for their fraud, and was later sent to jail herself. David's former business protégé and sole remaining confident Nolan Ross, now Wall Street's golden wonder boy, insists to help after recognizing her, despite her new persona as socialite Emily Thorne, a newcomer in the Hamptons summer party circuit, over which his wife Victoria ‘reigns’. Conrad Grayson…
Nolan proves himself an invaluable ally by preventing Victoria outbidding ‘Emily’ for the Southampton beach-house she wants as HQ for sentimental reasons. His firm's latest major deal also provides her the means to lure Bill Harmon into ruining his hedge fund. Victoria's hunky Harvard son Daniel quickly falls for Emily, but that inspires Victoria to hire a P.I. for a thorough check-up, which reveal the two year (prison) gap between Amanda and the fake Emily persona. Jack Porter has to sell his treasured yacht to Nolan to pay father's debts, but is offered a generous …
With unexpected assistance from her new ally, Nolan, Emily makes it her mission to destroy the political and professional life of the district attorney who convicted her father. Victoria very privately grieves the loss of her only true love while plotting to confirm her suspicions about Emily's past. Meanwhile, Daniel exposes a side of himself that Emily finds impossible to resist.
The recent scandals have the Graysons on edge, driving Conrad to pay a secret visit to Lydia and Victoria to submerse herself in her Mothers and Daughters charity event for mental health. The benefit provides the perfect opportunity for Emily to train her sights on taking down Dr. Michelle Banks, the psychiatrist responsible for institutionalizing her as a little girl, separating her from her dad for good. Meanwhile Jack and Declan face a difficult decision about the future of the bar, and Daniel's college buddy, Tyler, gives proof to Emily's apprehensions.
Victoria's more vulnerable side shows through when lingering feelings of guilt over her involvement in David Clarke's demise and an unforgivable rift with her daughter become too much to bear; Lydia returns with a vendetta against Emily and the Graysons that will soon come back to haunt her; Now wise to his father's transgressions and a duplicitous betrayal by his friend, Tyler, Daniel decides to make a major life change; and Charlotte and Declan find themselves in an unlikely predicament together.
The Grayson 4th of July parties are legendary, but this year's festivities ignite the wrong kind of fireworks when an incriminating surveillance video pops up and breaks the bond of trust between the Graysons and their head of security, Frank. Frank won't go down without a fight, which will spell trouble for Nolan and Emily. Meanwhile, the tension between Emily and Tyler will come to a head, Daniel can't seem to catch a break, and both of the Porter boys make bold moves to get their girl.
The Graysons' 25th wedding anniversary is a less than celebratory occasion when their desire to lay low is interrupted with a high profile story in the paper and a volatile family dinner featuring unwanted guests; the fate of Lydia hangs heavy over everyone, and Frank, desperate to prove his steadfast loyalty to Victoria, digs deep into Emily's past and uncovers too much.
Emily's plot further unravels, and Victoria's unstable relationship with her family grows increasingly more tense when an unwanted pawn in Emily's game heads to the Hamptons with questionable intentions. Meanwhile, Lydia's memory is a growing concern for the Graysons, and a recently embittered friend begins to play dirty.
Having discovered that her most valuable ally has turned against her, Emily desperately reaches out to her mentor for advice. Victoria's worst nightmare comes true when she finds herself totally alone both in her life and her home, while the threat of Tyler's negative influence continues to grow.
Emily questions Nolan's loyalty when she discovers a secret of his, but eventually uses it to her advantage in her battle against Tyler. Unfortunately, it sets in motion a chain of events that prove just how dangerous Tyler is. Meanwhile, Amanda makes herself more comfortable in the Hamptons as word of her presence spreads. Victoria regains some power, and things get very ugly between her and Conrad.
An unwelcome and unstable visitor makes a nightmare of Daniel's intimate birthday celebration with family and friends; Charlotte becomes a pawn in Conrad and Victoria's bitter divorce battle, and Emily watches her ultimate plan begin to unravel.
Emily sets her sights on a new target when a famed author who has deep ties with both the Graysons and the Clarkes returns to town; Conrad proves how dirty he's willing to get when Daniel gets dragged into the divorce; Jack finally let's his guard down with Amanda; and a stunning revelation is unveiled and becomes a game changer for Emily and the Graysons.
Daniel plans a romantic proposal that may carry dire, long-term ramifications, and Charlotte is devastated when she's forced to move back home with her mother. Meanwhile, Jack's life is put in jeopardy when he's betrayed by someone he adores, and Nolan forces Emily to think twice about her actions.
In an atmosphere of nervous excitement for Emily & Daniel's upcoming engagement party, things quickly start to unravel: Victoria tries to regain the upper hand by using Conrad's own father against him; Jack finds himself wandering deeper into the fray; the rug gets pulled out from under Charlotte, and even more so for Emily.
The splendor of Emily and Daniel's Fire & Ice engagement party quickly turns to terror when her vendetta takes a dark, unexpected turn, putting those she loves and hates in imminent mortal danger. Meanwhile, Jack resolves to find Amanda and Charlotte takes desperate measures to soothe the pain of her family's betrayal.
The murder scandal at the Fire & Ice party rocks the Hamptons, and someone has to take the fall. The devastating turn of events call for desperate measures, as the Graysons form a united front, Emily grows more anxious, Ashley steps up for the family, and Jack is not the only one wondering where Amanda has gone.
With the murder suspect in jail, the defense team are searching for ways to implicate someone else. Charlotte's credibility as a witness is called into question. Meanwhile, Victoria reconnects with an old flame.
Daniel returns home under house arrest and begin to suspect that Emily is getting too close to Jack. Jack returns only because Declan is about to testify against Daniel in the trial. Meanwhile, Emily is trying to move away from Jack the suspicion and testify in order to release Daniel.
With Daniel free of charges, Emily is set up to find the man that killed her father, which brings her to the house of one of the former secretaries of Grayson Global - only to discover a secret she wasn't expecting.
A look at Emily before she set out to go after the people she holds responsible for her father's death.
Emily's search for the white haired man is interrupted by the wedding plans, and now Nolan is going after him. Meanwhile, Sammy seems to be on the final stage of his life.