Det. Kennex and Dorian are assigned as protection for the sole remaining witness to a high profile murder, while Captain Maldonado deals with the case's defendant.
Rachel uncovers some worrying facts, and shares a moment of rapport with Charlie. Meanwhile, Neville and Jason continue to struggle with their relationship.
To get close to a playboy who stalks and--in one case--apparently kills women, Reese and Finch bring in Carter, Zoe, and Sam to get close to him.
While Irisa meets a face out of her past, Nolan and Amanda take a trip to deliver scrip for the new maglev branch, only to have their land coach stopped by jackers.
Two Defiance residents are killed under mysterious circumstances, and Nolan soon confirms that that they were torn apart by mutant Hellbugs. Meanwhile, Irisa is plagued by visions from the past, and Datak and Stahma try to reconcile the situation between Christina and Rafe so that her marriage to their son can proceed as planned.moreless
Hank goes back to investigate a closed case he handled of a murderer sentenced for execution who claimed that he acted in self-defense when a monster attacked him. Meanwhile, Monroe has an unusual situation come up at the spice shop.moreless
The team discover that the Alpha they're hunting is their missing teammate, Nina, whose powers are going out of control.
Nick becomes involved when Juliette witnesses a murder committed by a creature who is unable to maintain his human form. Meanwhile, Hank begins to notice a few things that don't add up.
Jake, Cassie, and Faye visit Jake's grandfather, Royce, in search of his family's crystal. At Royce's house, they are faced with some alarming theories about the events that unfolded sixteen years ago. Meanwhile, Diana struggles to balance her effort to help Adam and Melissa search for the Glaser crystal with her romantic life with Grant, who starts to suspect that she is hiding something. At the same time, Callum tires to force his way back into Melissa's life, and Jane and Charles plan their next move against Blackwell.moreless
While Nick investigates a creature that may have start killing due to its abused childhood, the creature community begin to have doubts about Eddie's loyalties.
When the CIA discover that MI6 are spying in their country, they send Annie to be recruited.