NEW YORK, Jan. 14 (UPI) -- The Wire, Luther and Avengers icon Idris Elba says Hijack Season 2 unpacks some of the questions left unanswered about his character Sam Nelson in the first season of the hostage thriller.

"Who, why, what, when? And, then, what happened to Sam after? What happened? Where did he go? What happened?" the 53-year-old British actor said during a recent virtual press conference.

"That became part of the development of what our character could possibly go through next. Well, we answered those questions, so we can say this about him," he said.

"That was definitely some very, very early-on conversations about why are we coming back? And what do we want to see? And what would he have had to have gone through to get to where we see him in the first frame of the second season."

Returning Wednesday with fresh episodes on Apple TV+, the thriller finds Elba's highly skilled business negotiator trapped with dozens of terrified captive passengers on a speeding underground train in Berlin.