This week's episode of "Scandal" will have sworn sisters Quinn (Katie Lowes) and Olivia (Kerry Washington) possibly engaging in a catfight that may cause the end of their friendship.

"Scandal" season 6 episode 14 comes with the title "Head Games" and will feature Olivia further bent on leaving Olivia Pope & Associates (OPA) as she desires to stay relevant in Mellie's (Bellamy Young) administration and make a mark as one of the president's aces. However, Olivia's decision, apparently, will not sit well with her group, especially with Quinn, who will confront her over her decision.

Based on the promo for the upcoming episode, Quinn comes to Olivia and asks her for some explanation on her imminent departure from OPA.

"When did you stop 'gladiating,'" Quinn is heard asking Olivia.

Obviously pissed with her sworn sister's questions, Olivia snaps and tells Quinn, "I certainly don't offer you an explanation for anything!"

Apart from teasing a possible catfight between Olivia and Quinn, the promo also shows Rowan (Joe Morton) coaxing her daughter to make the decision to be a part of the president's team, telling her that she has the Oval.

Another scene in the promo shows Quinn and Huck (Guillermo Diaz) shooting guns at unseen and unknown opponents, while another scene shows Olivia in a steamy encounter with Fitz (Tony Goldwyn).

Spoiler reports claim that the upcoming episode of "Scandal" will be the penultimate for the series. Reportedly, it will feature some exciting revelations, including what Peus (David Warshofsky) and the Mystery Woman are trying to accomplish.

"Scandal" season 6 episode 14 will also feature Fitz's remaining days in the White House as the President of the United States and possibly reveal what his legacy will be. 

Will Olivia and Quinn really engage in a catfight? Will there be no stopping Olivia from leaving OPA?

Find out when "Scandal" season 6 episode 14 airs this Thursday evening, May 11, over ABC at 9 EDT.