Victoria feels regret as she reflects on David’s downfall, and a fight with Charlotte weighs on her. Meanwhile, Lydia wants to get even with Emily and the Graysons; and Daniel rethinks his goals in the wake of Tyler and Conrad’s betrayals.

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’ quiet anniversary plans go off track and are replaced by an explosive family dinner. Meanwhile, Frank unearths some info on Emily in an attempt to prove his devotion to Victoria.

Emily questions Nolan's loyalty when she discovers a secret of his. 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.

In the excitement over Emily and Daniel's engagement party, things start to unravel for everyone; Victoria uses Conrad's father against him; Jack gets more involved; Charlotte and Emily both face problems.

Daniel's imprisonment sends Victoria to depths that no one thought possible, as the surprise return of a past love provides a destructive but welcome distraction from her family's struggles. Meanwhile, Jack's search for Amanda grows more desperate as he comes under suspicion for murder.

Whether or not she intended it to happen, Victoria's pawns are caught in the middle of an insidious cover-up and have to pay the ultimate price when Emily discovers the identity of the mysterious man who murdered her father. Meanwhile, Declan's testimony marks the beginning of the end of his relationship with a self-destructive Charlotte.

A painful loss forges a stronger bond between Emily and Jack, Victoria forms a new alliance that could seal Conrad’s fate, and Charlotte sets out on a vendetta of her own with Declan as her target.

Even with threats on their family closing in, the Graysons are in rare form as they put on a bold showing at their annual Labor Day bash. Jack and Amanda sail off on their honeymoon but the seas prove to be deadly, and this time Emily can’t control the outcome.