The passengers on the plane were a 'captive audience'. [=the passengers on the plane could not leave and had to listen to what was being said]
Enemy forces took/held them 'captive'. [=took or kept them as prisoners]
The 'captive' soldiers planned their escape.
(..) and the rightful Lord of Riverrun. I demand entry. Don't let him in. He's the Lord of Riverrun. I have to obey his commands. He's been their captive ever since they murdered his king at the Red Wedding. Why do you think the people who murdered his king at the Red Wedding (..)2016 TvShow: Game of Thrones Title: No One Season: 6 Episode 8