Shep: Hang on. Yer sayin' you think we're gonna die?
Doctor: Well, it stands to reason. You were both introduced recently, the audience isn't attached to you yet, and your part has you charging the enemy in the front lines, yelling and shooting.
Nick: Yeah, well, what if this is one of them plot devices. Like, where we're bein' used to tell the story better. Like with irony, or angst or sumfin.
Doctor: You know, you could be right. You are probably a plot device. Now let's all pick up our guns and head to the bridge.