Disturbance follows Bruce and Rick as they try to find their friends, Amber and Scott. They end up learning more than they set out for, and in the process find themselves in a jam of their own. The gate releases something new into the shield, and Kawe and Professor Hunt pick up where they left off after the new Flashback story, The Third Mistake where they confront each other at the river’s edge. A new survivor joins the team, and the stage is set for the final two Invasion events.