An assassin with a secret, Mia's life is changed forever by a letter from her ex.

Mia ends up becoming the victim after her new brood refuse to accept her and her landlord wants revenge.

A romantic opportunity comes up for Mia, but her secrets end up being compromised after a hit goes unhappyly wrong. Riley has a problem of her own to deal with.

Following a huge confession from Riley and progress with Ben, Mia attempts to keep the her home and work lives separate, but they end up coming to a full-on collision.

Mia finds herself being forced to use her professional knowledge to cover up what Riley has done. She feels uncomfortable though with receiving help from Eddie, who she still cannot fully trust. Ben's confusion about his attraction to Mia increases after he finds out more about her past.

Mia ends up going missing in action. Eddie is furious and Riley is arousing suspicion. The brood find themselves under fire from everywhere.