Friends will become foes in The Blacklist's season 2 finale.

'The Blacklist' Season 2 Spoilers: 'A Lot Of Answers Coming' In Finale, Sets New Direction For Season 3

"Masha Rostova" will conclude the series' sophomore run with some trust issues for the Post Office team. With Red and Liz off pursuing their own agenda and Director Cooper (Harry Lennix) now firmly - albeit unwillingly - in Tom Connolly's (Reed Bimey) pocket, the line between colleague and enemy will become blurred for Ressler (Diego Klattenhoff), Samar (Mozhan Marno), and Aram (Amir Arison).

"I can tell you that a lot of allegiances will come into questions," Marno teased, according to E! Online. "What you think is right and what you think is wrong will absolutely be called into question. Each character will have a moment of having to choose and it's never a clear choice."

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Will these doubts lead to the finale's impending cliffhanger? Marno didn't say, but E! Online confirms that The Blacklist will hurtle into the summer hiatus with at least one unsolved mystery to keep viewers enticed.

Find out more when The Blacklist airs Thursdays at 9 p.m. ET on NBC. Click the video below to see a preview for the season finale, "Masha Rostova."