Did the nuclear battle mean the end for the human race?
That was revealed on Salvation Season 2 Episode 8 as Liam got help from an unlikely source, but he had to question whether that source was playing him.
Meanwhile, Harris and Grace took matters into their own hands when it emerged that Darius was missing, and there was no way of them finding out the truth.
With the fate of the world once again at stake, the battle lines were drawn.
Use the video above to watch Salvation online right here via TV Fanatic.
Get caught up with all the latest action right now.
Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.