 When Robert's former associate Sarah Mason arrives with Roger Hammond's group of refugees, Darcy's hunch that Sarah is "not on our side" is confirmed when Sarah takes Samuel hostage to get the last nuclear weapon from Robert.After Allison kills Sarah, Darcy takes the children and moves out of the house temporarily, saying there is no way they can possibly work out the relationship.When Jericho is attacked by New Bern with mortars, Robert finds Darcy and work together to defend Jericho, before the war with New Bern is stopped by the ASA.