The Liberator crew intersects a strange ship, and finds a group of killers from the past on board who will stop at nothing to kill Blake's Six and take over the ship. But why? And can Gan and Jenna stop them? What is Gan's dark secret? Meanwhile, in the other plot, Blake decides to become a terrorist with a fiendish plot to blow up a Federation communications outpost, but does he have the skills to avoid flesh-eating plants, the Federation's crack security forces, a super-high tech killbot? And can he, Avon and Villa trust a silent, mysterious stranger?