Nothing spoils the mood for an at-work quickie like the sight of a two-faced rabbit, the work of Bitten's resident mad scientist, Dr. Sondra Bauer.
Her decidedly unethical work gets Dr. Bauer canned from the university.
Dr. Bauer goes to the roof to end it all, but her would-be suicide is thwarted by Aleister, who recruits her for his own meddlings with nature.
Back in the present day, Dr. Bauer isn't doing too well after injecting herself with Elena's wolf blood. While she's both fascinated and aroused by the pain of her impending transformation, her mind seems unable to handle this shocking turn of events.
Dr. Bauer's former superior (and former lover), Dr. Penner, tells Clay that she shacked up with someone named 'Timothy Ashmont' after he fired her for making two-faced bunnies.
Clay passes on the info to Nick and Paige, who track down Timothy Ashmont's mother at a retirement home. They also flirt.
Ruth tells Jeremy they have other enemies besides Aleister. Hmm ... maybe we're about to meet one of them?
Meanwhile, Aleister continues his seduction of Savannah to the dark side. He encourages her to use her powers to put her attendant to sleep without a talisman ... which she does, with a little unknown help from her mentor.
Elena asks Dr. Bauer why Aleister needs her blood. She says he has to "inject the blood of the Cursed into the One That Curses" … and that "this is the way the world ends." Sounds ... dramatic.
In another part of the compound, Rachel experiences what we've previously heard referred to as 'The Gentling.' It's Aleister's Clockwork Orange-ish brainwashing technique that turns you into an Aleister Goon.
Here we go ... Dr. Bauer's about to wolf out!
Aleister prepares to reveal a little of his backstory to Elena, but not before he uses his magic to keep her from, you know, trying to kill him.
Aleister was adopted by the ultra-religious Ashmonts, who were convinced Aleister had the devil in him. Mr. Ashmont thought he could whip it out of him with a belt buckle labeled with the word 'Faith.'
Mrs. Ashmont freaks out when she sees that same devil in Paige's eyes.
Aleister explains The Undoing: the blood of the cursed (Elena) will mix with the blood of the one who curses (Savannah), which will cause all other witches to die.
Aleister's revelation of his master plan is interrupted by word that Dr. Bauer has escaped ... and has left quite the bloody path to follow.
Dr. Bauer-wolf traps Savannah in the storage room, though Elena soon comes to the rescue.
Meanwhile, Rachel seems to have resisted The Gentling and makes a break for Aleister's main living room, where she finds his spinning top ... and stops it.
Suddenly, all of the marks on the necks of Aleister's goons fade away! Neat trick.
Dr. Bauer changes back, though her mind is now completely gone. Aleister mercy-kills her in the same way he murdered his adopted father -- by making her bleed out in the most gruesome way possible. One final bit of beautiful pain.
Ruth and Jeremy pay a visit to Clara Sullivan, a former witch whom Ruth stripped of her powers after she went wicked (probably one of those "other enemies" Ruth mentioned earlier). Ruth takes Clara's hand to scan her memories ...
... which reveals the image of a baby in a basket. "You never went through with it!" Ruth exclaims. Whoa, that might ... mean something.
Paige reveals to Clay and Nick that someone has broken The Commandment and given birth to a male witch. The "girl babies only" thing with witches isn’t biological, it’s a rule due to The Prophecy of the Tribulation, which says that a male child born to a witch will bring about their downfall.
After the horror of being stalked by a werewolf, Savannah vows to never be afraid again. She shows off her left-hand powers without Aleister prompting her, which pleases him greatly.
Nick and Paige finally consummate their flirting ... in the woods, against a tree. Hot. And probably sticky, dirty and uncomfortable, too.
Aleister mixes Savannah's super-powered blood with Elena's blood, and the results finally delight him. "Ding Dong, the Witch is Dead," he quotes villainously. (That's from The Wizard of Oz, by the way.)
Elena and Savannah continue their Ripley-Newt bonding, with Elena requesting they try to contact Paige.
Paige manages to connect with Savannah, though she's actually speaking as Elena, with Savannah serving as the link between the two.
Elena tells them they're in Quebec, at a former military base: look for a grouping of red roofs, a field of lavender nearby, and a train three miles to the east.
She also gets to have some "Witchy FaceTime" with her boyfriend.
The connection is severed upon the arrival of Aleister's goons, who zap Elena and drag out Savannah. Sheesh, the bad karma in this joint!
Based on the details given by Elena, Nick and Jeremy figure she could be in one of two possible locations ... which are 150 miles apart. The team splits up to investigate both locations, after which Jeremy tells Ruth that he's going to tell Paige the truth: that Aleister is Ruth's son!
Aleister has one final test of Savannah's powers: using her left hand to transfer her fear to her attendant, who begins to gurgle and blurch horribly.
"Today you are a full witch, and you will never be afraid again," Aleister tells his student. "Today is the beginning of the end!"