adam: ok, lorinda. lorinda stewart: yes. adam: talk to your daughter. lorinda stewart: amanda? amanda lindhout: mom? lorinda stewart: amanda, i love you, sweetheart. kate snow (voiceover): proof that amanda was alive. lorinda stewart: after the first couple weeks, we realized that this might go on for longer than we hoped. kate snow (voiceover): on the other side of the globe, amanda couldn't know how long she'd be held, but feared the worst. i was the only female in a group of about 16 men. so there was a lot of scary thoughts. craig melvin: coming up, the danger and terror escalate. amanda lindhout: tonight, they have brought me out to kill me. craig melvin: and later, a twist straight out of a hollywood thriller. kate snow: you're an undercover agent. correct. craig melvin: can amanda help turn the tables on her captor? my heart started pounding, and i fell to my knees, and i started crying. craig melvin: when "dateline" continues. [music playing] [coughing] copd isn't pretty. i'm out of breath, and often out of the picture. but this is my story. ( ♪♪ ) and with once-daily t