Imprégnée en tant que jeune femme aveugle, Echo doit infiltrer une secte dirigée par un leader charismatique avant qu'une tragédie n'ait lieu et pour secourir une femme retenue contre son gré.
Echo is programed to go under cover as a blind woman at religious cult in Arizona after a corrupt senator recruits Dollhouse to assist the ATF in the breakup of the cult. But with Boyd watching from a distance, he soon learns that the Jonas Sparrow cult may be more difficult to handle, and the ATF agent in charge has an ulterior motive... as does Dominic when the situation takes a turn for the worse. Meanwhile, Agent Ballard continues his relentless quest to look for Echo while his neighbor, Mellie, continues to harbor a crush on him. Also, Topher and Dr. Saunders monitor Victor when he begins exhibiting primordial behavior whenever he's around Sierra.