Emily VanCamp
Cast member Emily VanCamp poses at the premiere of "Captain America: The Winter Soldier" at El Capitan theatre in Hollywood, California March 13, 2014. Reuters/Mario Anzuoni

In "Revenge" Season 4, Episode 6, Nolan Ross (Gabriel Mann) tries to out-scheme Victoria Grayson (Madeleine Stowe). Charlotte Clarke (Christa B. Allen), meanwhile, dives deeper into the dark.

Spoiler alert: This update contains Revenge Season 4 spoilers. Read at your own risk.

It's Nolan Ross vs Victoria Grayson in the promo clip for Revenge Season 4, Episode 6 ("Damage"). Emily Thorne (Emily VanCamp) is on a quest to find out more about her father, while her sister Charlotte spends the night with the man who nearly killed their dad in Episode 5.

"Oh, my God!" Charlotte gasps in utter horror at something she seems to have done or discovered. Jack slams in her face that she has become like Conrad Grayson, so she is in an awful mood at the end of Revenge Season 4, Episode 5. She winds up in a club, and gets on a taxi with a man who has a crescent tattoo on his wrist.

The tattoed man is the same driver who nearly crashed into David Clarke (James Tupper) in an unexpected attack. Emily thinks Victoria has orchestrated it; but is there some enemy out there that neither Emily nor Victoria knows about?

Jack Porter (Nick Wechsler) has to play the son-in-law part for now, for Emily's sake. Emily manages to get his dad back in their old Hamptons home. David, for his part, declares he wants revenge over what happened to her daughter Amanda. Is it really over between David Clarke and Victoria Grayson?

It is not easy to get on Charlotte's side after a series of Grayson stunts she has tried to pull since the end of Season 3.

While Emily is not entirely blameless, at least she will not try to kill her own blood. What could the writers be planning for Charlotte in Revenge Season 4? There has to be an end, somehow, because Charlotte just keeps failing, to the point that her character is already losing relevance in the big picture.

At the Hamptons Police, Brian Hallisay's Ben is digging into a closed case that involves the lead characters of the series. What he uncovers would define the future of his relationship with Emily Thorne.

VIDEO: Revenge Season 4, Episode 6 Promo | ABC on YouTube

Revenge Season 4 airs Sundays on ABC.

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