Bo and Tamsin protect a Japanese warrior with a hit on his head. Lauren deals with death threats of her own.

Bo tracks down an old foe who has taken on a new form.

Fresh from the realization that she is a member of the Fae, Bo is approached by a strange client, Will, a real life Will O' the Wisp. The storehouse of jewels he's collected over the centuries has been stolen... by a human! While this line of work is foreign to Bo, Will offers her an irresistible payment - information about where she might have come from. As Bo gets involved in the recovery of Will's gems, she finds the shocking truth about the thief... and the weird and deadly forces that seem to also be on the trail of the jewels.

Bo and Dyson team up to track down a stolen Mongolian Death Worm on behalf of Dyson's old wolf pack mate. When things get complicated, Dyson finds himself reliving his medieval days – tormented by the hard choices he once had to make, and fighting in the present not to repeat past mistakes.

Bo joins the brutal world of underground fighting to help a human competitor juiced up on Fae "steroids" that are sending him on blackout rages – and putting his son in harm's way. Meanwhile, the sister of the first boy she ever killed shows up and confronts Bo over her deadly past.

When rich young humans start turning up dead, Bo agrees to go undercover to help Dyson find the Fae responsible. As she makes her way through the "Gossip Girl" world, Bo learns a deadly kind of class warfare is afoot.

Dyson seeks out an elemental Fae to rescue someone he loves. Kenzi’s stuck on babysitting duty – but her unlikely charge might be the key to cracking the case.

Bo is reluctant to comply with her role in a prophecy foretold by an order of Knights, until advice from a surprising source helps her make a difficult decision.

Bo and Kenzi open a private investigation office. Their first job is to find a missing student at a local college. Kenzi goes undercover in the college, Bo joins campus security to uncover what happened. Bo and Dyson's relationship goes on the rocks and another species of Fae is revealed.

Dyson rushes to be by Bo's side when she puts her life on the line to save a haunted family. At the same time, Lauren finds, much to her dismay, that she can no longer outrun her past.

Bo fights for the freedom of a talented opera singer, whose voice could be the key to unlocking the answers she seeks. Kenzi is threatened by someone from Hale's past.

Bo needs the help of an estranged family member. Lauren finds herself haunted by a mysterious spirit.

A dangerous mission forces Tamsin to confront past mistakes. Meanwhile, Lauren must deliver bad news to a friend.

Bo has been living on the run from her strange appetites and what havoc they wreak. After leaving someone she kills out in the open, she is contacted by a group called The Fae. She discovers who and what she is, and is told to join one of two tribes.

When a Fury with an unfaithful spouse tries to hire Bo to kill her husband's mistress, Bo instead takes the side of the unsuspecting human woman and puts her under protection.

When Dyson wakes up bloody and without the last eight hours of memory, he finds himself accused of murdering Ba'al, a close associate of The Morrigan's pet psychopath, Vex, and takes refuge in Trick's bar, invoking sanctuary.

As Bo struggles to accept the new terms of her and Dyson's relationship, she investigates an apartment building full of residents who appear to have lost their minds.Kenzi's choice to employ a Brownie to help around the house threatens to backfire on her.

The Morrigan enlists Bo's help to find a tortured graffiti artist under her employ. The young painter has killed a Dark Fae, and his urban murals are exposing Fae secrets all over town – with The Morrigan on the hook for his actions. In exchange for her help with the case, The Morrigan offers Bo information on breaking The Ash's hold on Lauren.

Bo is happy for the distraction provided by an assembly of strippers that helps break an accused cop-killer out of the police station. While Bo goes undercover at a strip joint to follow the trail of one of the apparent accomplices, Dyson and Hale simultaneously track the murderer. Both investigations meet in the middle at The Hand of Glory – a disembodied hand with remarkable powers. Coming off The Morrigan's shocking revelation about Lauren, Bo and the doctor have a difficult conversation.

Kenzi and Trick must race to save Bo from the fallout of a steamy night gone awry before it binds the Succubus for a millennium. In its wake, Bo poses very uncomfortable questions to Trick about her origins.

When Kenzi’s childhood friend is snatched away before her eyes, Bo follows her underground to help find him. Meanwhile, Dyson’s new partner looks like trouble for Bo.

When humans start dissolving into goo, Bo uncovers a nefarious twist to a sexy Key Club. Meanwhile, Bo becomes concerned over Kenzi’s attachment to her forcing Bo to make an extreme revelation about her friend.

Bo, Dyson and Kenzi go undercover at an urban camp to catch a serial killer Fae who preys on at risk youth. A blast from the past greets Tamsin, but the visit may not be purely social. Bo is given some emotional news that is hard for her to accept.

Bo resolves to go to hell and back to get the answers she’s been searching for, with or without her friends' support. Meanwhile, Kenzi's determined to uncover what Trick's hiding.

With the gang still reeling from Bo's shocking announcement, Kenzi signs them up for an undercover mission at a mysterious corporation. Meanwhile, Bo retraces the steps that may lead to her destiny.