S03 Episode 4Newer Elements of Our Defence

Mark is taken down in a Prolethean shoot-out and Sarah must step in to help. But as Sarah gathers intel that puts her on the trail of the original Castor DNA, a familiar foe is not far behind.

SPOILER ALERT! Content below reveals spoilers from this episode. Engage at your own risk!

“You brought a gun to a drug deal? What are you, crazy?” Alison