“Vigilante” is episode nine of season three of Sanctuary.
In the previous episode, “For King and Country”, it turned out that Worth was dying from radiation poisoning due to his use of the rift that allowed him to teleport. Because Magnus followed him into it she, too, is also dying. According to Worth, there is a cure, in the city from the hologram inside Hollow Earth. Magnus was not willing to help Worth lead them to the city by showing him the map but Tesla pointed out that, because Magnus is dying, she is not in command of the Sanctuary currently – Will is.
Magnus is opposed to the idea, saying that is simply doing what Adam wants. Will points out that this is no different to everything else that has happened. So Will decides to let Worth see the map. Worth clearly knows what he is doing with the city but, as Magnus points out, they do not know what he is doing. Worth brings up an image of the keystone that he demanded Magnus give him in “Breach”. Now they just have to find the keystone.
Magnus gets the coordinates of the keystone’s location which is in Mongolia. She and Druitt head there, and Magnus asks Tesla to build a shield as, in “Animus”, they discovered that the map at the very least, and quite probably the gateway to Hollow Earth, reacted quite badly to the presence of source blood. Something that Magnus, Druitt and Tesla all have in their systems. At the location in Mongolia, Druitt comments that there is nothing there – and promptly falls down a hole. The hole is where the keystone was kept, but it is missing. Its new location is discovered quite easily. Too easily perhaps.
Back at the Sanctuary Will is coming face to face with the minutiae that Magnus deals with on a daily basis for running the Sanctuary and dealing with problems for the entire network. Which gives Will a new appreciation for what she does. Bigfoot is heading into the city later for a vigil that is going to be held for his friend Father Jepson who was murdered in “Trail of Blood” and there is also a crate of Abnormals that has gone missing. Coincidentally, an FBI agent turns up on the Sanctuary’s doorstep. She is someone who knew Will back at Quantico – although he can’t remember her – and wants his help with a case she’s looking into.
The agent works for behavioural analysis – serial killers – and is looking into the murder of Father Jepson. True, he was murdered by a police detective, but one who was being coerced by a threat to his family and promptly died afterwards. This is not the only case of its kind; several other murders have been committed by people who said they were being coerced and then promptly died, often of fairly weird conditions, after capture. At this point, no-one knows about the fake priest who was probably responsible for Father Jepson being killed.
Several strands to the episode and some seem likely to come together.