Meanwhile, our attacker pulls out the bullet with a pair of pliers, seemingly unaffected by the pain. He emerges from an old Cadillac with a severed hand, which he throws into the water. Perkins still had both his hands when his body was found; it looks like the judge may not be the attacker's only victim.
Prints come back from the gavel, belonging to Victor Chilton. The man isn't one of Perkin's parolees, but this still makes him a prime suspect. The police raid his home, only to find Chilton dead on the floor. Not only that, he's missing his right hand... the same hand responsible for the fingerprints on the gavel. Above Chilton's severed wrist is a vintage woman's watch worn inside out. The watch definitely didn't belong to Chilton; it looks like the killer is trying to send a message.
Hank and Nick go to Monroe for help tracing the antique watch. When Monroe takes the piece apart, he finds that someone put glue in the movement, probably to stop it on a specific date and time. The time means nothing to Nick and Hank, but Monroe is able to use the serial number to trace the watch back to its most recent owner. It belongs to Mary Robinson, a retired Assistant District Attorney. Hank worked on a number of cases with her; this can't be a good sign.
Nick and Hank rush to the home of Mary Robinson, but it's already too late. Mary is propped up in her chair behind in desk, dead; bloodstains surround her mouth and clothing. On her desk is a small statuette of the scales of justice, weighted down on one side because of the bloody tongue placed in it. Hank has an epiphany: the tongue isn't the message, Mary Robinson is.
Oleg Stark committed a triple homicide five years ago as a contract killer. Twenty-four hours ago, Stark escaped when he was on medical transfer from his facility in California. Judge Perkins presided over his trial; Mary Robinson prosecuted the case, and Victor Chilton was the jury foreman who handed the verdict to the judge. March 11, the date on the watch, was the date Stark was sentenced to 300 years in prison. Hank was the arresting officer on the case, which means he's probably next. The captain refuses to let a frustrated Hank continue work on the case; he can't risk putting one of his men in danger like that.
Stark arrives at a gas station and pulls to a stop. He takes a stuffed monkey toy and stuffs it in the gas tank, lighting the monkey on fire. Stark calmly leaves the scene, helping an old lady cross the street as his car blows up in flames. The team comes across what's left of Stark's stolen Cadillac, while Stark looks on from bushes nearby. His disappointment is clear when Hank, his next victim, doesn't show up at the scene because he's under protective custody.
Later in Aunt Marie's trailer, Nick does research but can't seem to find an answer as to what this hulking, indestructible man could be. Nick does come across an old bottle at the apothecary table called Siegbarste Gift and an old leather case in the weapons cabinet containing a large, ancient rifle. Unsure if this is the weapon he needs, he returns it to the cabinet.
Nick arrives home to find himself alone. He calls Juliette; she's on the way home with dinner, and he should boil some water on the stove. Nick's startled by a noise outside and convinces himself it's just a raccoon. As Nick heads for the back door it explodes open, Stark charging in. Nick barely has time to draw his weapon before Stark tackles him; they hit the floor hard and Nick's gun goes flying. Nick's horrified as Stark morphs into a terrifying beast-like Siegbarste.
Juliette enters in the midst of the commotion and takes it upon herself to get involved despite Nick's insistence that she make a run for it. Juliette attacks the Siegbarste with the boiling hot water on the stove, giving Nick the opportunity to grab his gun. The shots confuse the injured beast enough to scare him out of the house, as he stumbles out of the giant hole he made. Juliette rushes to the aid of a bloodied and beaten Nick and gets him to the hospital.
When Hank learns that Stark went after Nick at his house, his rage at being cooped up at the station boils over. Is he really supposed to sit idle while his partner takes the beating that was meant for him? Hank knows that Stark won't stop until he gets him; the only way nobody else is going to get hurt is if he goes at it alone. The captain and Hank strike a bargain: what if they set up a trap for Stark using Hank as the bait? A plan is hatched.
Monroe visits Nick in the hospital and is shocked by the beating he took. When Nick explains the attacker, Monroe knows what it is instantly: a Siegbarste. He explains that Siegbarstes are hard to kill; they have dense bones, thick skin and body odor that could stop a train. To take one down, you need Siegbarste Gift, which means poison in German. Nick remembers the gift and the gun in the trailer and puts the pieces together.
Nick sends Monroe inside the trailer to retrieve his Siegbarste-killing tools, finding the gift on the apothecary table and the gun in the weapons cabinet, per Nick's instructions. Monroe carefully takes the giant bullets and dips them in the amber liquid before safely storing them away.
Hank arrives at the hospital to visit Nick, to Nick's surprise. Nick says he'd feel better if Hank was at the precinct, but Hank explains the plan they concocted to lead Stark into a trap. When Hank's anger bubbles to the surface, Nick finds him out; he's not following the plan, he's leading Stark to a different location to try and finish him off himself. Hank, irrational, refuses to listen to Nick's plea and takes off before he can stop him.
Monroe arrives at the hospital just as Hank's leaving, and Nick tells him that he MUST track down Hank and get him the Ogre-killing weapons before he's too late. Monroe quickly jumps back into his VW and tears out, trying to catch up with Hank. Stark follows Hank as he drives off, and Monroe tails them both.
The three cars arrive at a quarry, Monroe trailing at a safe distance. Hank and Stark approach each other, man-to-man, ready to put an end to this feud. Meanwhile, Monroe takes the rifle with Siegbarste Gift infused bullets and loads it while he hides in the bushes about 100 feet away. As Hank and Stark battle it out, Monroe looks for an opportunity to take his shot, but he doesn't see one until Stark has a boulder raised, ready to crush Hank. Monroe shoots just in time, crippling Stark and saving Hank from a horrible fate. Monroe creeps away before Hank has a chance to find out who saved his life.
Later, the captain reprimands Hank for disobeying his orders. All that matters now though is that he's safe. A mystery still remains; the bullets pulled from Stark's body are massive and were made in England over 100 years ago. They belong to a triple barrel rifle, mostly commonly known as an elephant gun. Who on earth would have a gun like that?