Lucinda Cain, the Agathon sisters and all the other protagonists of Battlestar Galactica Deadlock will need to face their greatest threat yet: Lachesis, the powerful IL-series commander, has awakened and nothing will be the same. Battlestar Galactica Deadlock is back with a new expansion! In Sin and Sacrifice, the epic story of Deadlock continues, and brings with it an exciting conclusion to the Season One storyline.