An assassin on the verge of retirement must put the good life on hold when his greedy boss sends a squad of young, ruthless killers to take him out.

Lost Girl focuses on the gorgeous and charismatic Bo, a supernatural being called a succubus who feeds on the energy of humans, sometimes with fatal results. Refusing to embrace her supernatural clan and its rigid hierarchy, Bo is a renegade who takes up the fight for the underdog while searching for the truth about her own mysterious origins.