Season 3 Episode 20: Glittertind

"With the Hubs still down, the agents will have to rely on a rather unorthodox addition to the team, especially when a new infraction - one which will bring them up against an old enemy - presents itself. Meanwhile, Sarah has many new challenges to face herself as her life takes a dramatic new turn, and must face a choice - become the thing everyone thinks she is, or become a victim herself..."