1. Episode 1

Determined to reintegrate, witch Sarah Fenn returns to Sanctuary but a horrific magical murder forces her to work with DI Maggie Knight in solving the case; Harper meets an intriguing stranger on her journey and makes an new discovery.

2. Episode 2

Following the discovery of a sigil at the crime scene, Sarah and Maggie determine that they have to dig deeper into the killer's identity; having discovered that Lachlan's identify, Harper grapples with her feelings towards him.

3. Episode 3

Sarah and Maggie determine that Angela has the most to gain from the murder and agree that they need more evidence; a magical attack on Harper forces Sarah to betray Maggie; following the attack, Sarah rekindles her romance with Lachlan.

4. Episode 4

Lachlan is arrested for Pierre's murder; Sarah and Maggie fight to clear his name by revealing Ryan's magical death to Deveraux; Angela intensifies her campaign against witches; Harper, revealing her magic, unbinds Lachlan.

5. Episode 5

Having unbound Lachlan, Harper fears she might have damaged his magic forever; fearful of the ramifications, Sarah hands over Starcross to the Moot; when Bea goes missing, the killer's identify is revealed; Sarah and Harper fight to save her life.

6. Episode 6

Sarah, Lachlan, and Harper plan to leave Sanctuary; Maggie discovers Lachlan's connection with the revolutionary Redhaven group; Angela's anti-witch bill passes but the truth about Luka is revealed; Sarah and Harper both embrace their destinies.