Revenge will undergo a game changing moment during "Repercussions."

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Set to air as the fifth episode of season 4, "Repercussions" will instigate an event that will take the episode title to a whole new level.

"An event that will change #Revenge forever will start at this bar," tweeted writer Ted Sullivan on Saturday alongside a photo of the establishment's sign.

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Sullivan tagged Gabriel Mann (Nolan) and Karine Vanasse (Margaux) in his post, possibly indicating that Nolan and Margaux will be involved in the upcoming event.

The bar incident is the only intriguing aspect of episode 5. Sullivan also tweeted a photo of an unidentified car that will play a significant role in "Repercussions."

"This mystery car is very important in this ep[isode]," Sullivan wrote, once again tagging Mann and Vanasse along with Christa Allen (Charlotte).

Is the driver of the mysterious car linked to the game changing bar incident? Fans will have to wait through "Renaissance," "Disclosure," "Ashes," and episode 4 to find out more.

Catch up with Revenge when the series returns to ABC on Sept. 28. Click the video below to see a preview of season 4.

Tags: Revenge television ABC