Dermot Mulroney

Francis Gibson (Dermot Mulroney) may have suffered a minor setback to his hostage plan on NBC's Crisis, but that doesn't mean he's anywhere near ready to give up — at least not until he's taken down CIA Director Gabe Widener (Mark Valley).

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On Sunday's episode, Koz (Max Martini) tries to convince Gibson to release his hostages and end the standoff. "We are in a war with Widener, and if I don't finish him we're all dead," Gibson responds.

Check out the clip below, exclusive to TVGuide.com, to see if Koz will be able to convince Gibson to stand down. Will Gibson's determination be his downfall?

Crisis airs Sundays at 10/9c on NBC. Catch up on the latest episodes here.