Season 2 of Dollhouse begins when Echo agrees to become a double agent, and her missions take more of a mental impact on her body and her psyche. We get to discover the path of deception Sierra took that eventually led her to the Dollhouse, and we learn how she is connected to Rossum. Meanwhile, Senator Perrin is out on a daring crusade to expose the terrible truth about the Dollhouse, and Adelle thinks that somebody is using the senator as a puppet in order to bring Rossum Corporation down – a rival business, perhaps? All efforts are done in order to stop the Senator from knowing the truth, but he gets help from an unlikely source.

Echo finally feels that all the imprints made on her are trying to get rid of one another and of her real identity. Alpha makes a return and kills off all of Echo’s past romantic interests, Victor’s contract expires but he fears that his past may compromise his future with Sierra, and Adelle decides that Echo has become too much of a wild card, and is now more of a threat. She unleashes the horrors of the Attic upon her.