Stana Katic Previews Castle's Darkest Hour Ever -- and the Deeply Romantic Moment Within

This Monday on Castle (ABC, 10/9c), Beckett is abruptly called on to help the NYPD’s narcotics division with a seemingly simple sting, by posing as a low-level drug courier to reel in a bigger fish. But when things don’t go at all as planned, suffice it to say she won’t be home in time for dinner with Rick, as promised.

Stana Katic shared with TVLine …READ MORE