13 Episodes
Short on time? Here's the essentials:
This season of "Lost Girl" centers on Bo, a succubus who feeds on sexual energy. Her primary goal is to understand her true nature and protect her loved ones. Key characters include Kenzi, Bo's fiercely loyal human best friend; Dyson, a werewolf detective and Bo's former lover; and Lauren, a human doctor and Bo's current girlfriend, who is often caught between the Fae world and her own.
The season's core conflict revolves around Bo's destiny as the Dark Fae and the machinations of powerful Fae factions like the Una Mens. Bo grapples with her dark heritage, facing threats from ancient beings and betrayals from those she trusts. Key turning points include Bo learning she is destined for the Dark Fae, a shocking massacre of the Una Mens orchestrated by Bo and Rainer, and the devastating death of Hale at the hands of Massimo.
The season culminates in a desperate fight for survival. After Rainer is killed by Massimo, and Massimo consumes a dangerous Origin Seed, Kenzi makes the ultimate sacrifice, sacrificing herself to close a portal to Hel. Bo vows to find a way to bring Kenzi back.
Season 4 of Lost Girl covers episodes 1-13. Here's everything that happened:
Season 4, Episode 1: In Memoriam - Kenzi, Dyson, and others find they've lost their memories of Bo. Aife hires them to find her missing daughter, also named Bo. They seek a compass to restore their memories, leading to a dark Fae ball where Kenzi dances with both Dyson and Hale. Lauren is found working as a waitress with no memory. The episode concludes with Bo's eyes opening.
Season 4, Episode 2: Sleeping Beauty School - Dyson and Hale seek a way to find Bo, leading them to a sleeping Endymion. Kenzi babysits a young, reincarnated Tamsin. Lauren, hiding as a waitress, connects with a coworker. Dyson and Cleo board the death train, while Bo escapes by draining a maid and jumping off.
Season 4, Episode 3: Lovers. Apart. - After escaping the train, Bo encounters a family haunted by a body-jumping spirit. Dyson and Cleo track Bo, eventually helping her. To appease the spirit, Bo and Dyson perform a marriage ceremony for the ghost and her lost lover. Meanwhile, Lauren's past resurfaces, leading to her kidnapping by the Morrigan.
Season 4, Episode 4: Turn to Stone - Bo and Dyson rekindle their romance while investigating gargoyle attacks linked to the Una Mens. Kenzi confesses to kissing Dyson and her dealings with Massimo. Lauren, held captive, reveals her past as an eco-terrorist. Massimo meets his end by falling into lava. Bo learns she has been chosen as Dark Fae.
Season 4, Episode 5: Let the Dark Times Roll - Bo learns she's been pledged to the Dark Fae and seeks Vex to undo it. The Morrigan offers help, leading Bo to a Dark Fae party where she reunites with Lauren. Tamsin engages in a deadly dance-off to free Bruce. Vex, poisoned by the Una Mens, cuts off his own hand to escape their binding magic. Bo gives Vex's hand to the Morrigan, and Lauren chooses to stay with the Dark Fae.
Season 4, Episode 6: Of All the Gin Joints - A Fae opera singer, Ianka, seeks Bo's help to escape her owners, offering to restore Bo's lost memories in return. Ianka kills Marcus with a death knell when she learns he intends to use her to massacre his enemies. The song also hurts Hale and Kenzi. Ianka dies, giving Bo a recording that triggers a memory of being marked by the Wanderer. The Una Mens then arrive to take Dyson into custody.
Season 4, Episode 7: La Fae Époque - Bo enters Dyson's memories to prove his innocence in a century-old crime, finding herself as Dyson in 1899 Paris. Lauren assists, linking Bo to Dyson's mind, while Kenzi and Hale try to help in the real world. Bo discovers that Lauren/Flora, possessed by mystical shoes, committed the murders. Flora is shot, and Bo wakes Lauren with a kiss. Dyson and Kenzi are freed, and the gang gathers at The Dal.
Season 4, Episode 8: Groundhog Fae - Bo and Tamsin are stuck in a time loop during Yule celebrations, realizing partygoers are vanishing. Bo learns Hale manipulated the loop to perfect his moves with Kenzi. Krampus seeks regret to make candy, capturing Bo to exploit her darkness. Bo confronts her fears, breaking the loop, and Tamsin confesses her role in The Wanderer finding Bo.
Season 4, Episode 9: Destiny's Child - Bo opens a jar containing Hugin, who claims he can lead her to the Wanderer. He betrays her, sending her to Irkalla where she faces the Leviathan. Kenzi and Tamsin search Trick's lair, seeking answers. Bo returns, claiming Rainer is her destiny, shocking Dyson and Lauren. The episode concludes with Bo's apparent willingness to be with Rainer.
Season 4, Episode 10: Waves - Bo and Rainer obtain his lost power by massacring the Una Mens. Meanwhile, Kenzi, Dyson, and Lauren investigate a case involving a mermaid stealing legs. Trick warns Bo that killing the Una Mens will release their power into a dangerous Origin Seed. The episode concludes with someone reaching for the seed.
Season 4, Episode 11: End of a Line - Bo, Tamsin, and Acacia investigate revenants controlled by Laveau, who seeks the Una Mens seed. Kenzi's mom returns, seeking money from Hale. Hale proposes to Kenzi, but their happiness is shattered when Massimo returns and fatally stabs Hale. Kenzi is devastated by Hale's death, blaming Bo for everything.
Season 4, Episode 12: Origin - Following Hale's funeral, a knight pledges fealty to Bo, warning of the Pyrippus. Kenzi, distraught, seeks revenge on Massimo. Lauren seduces the Morrigan to turn her human. Bo, to save Rainer, agrees to a handfasting ceremony, unleashing the Pyrippus, her father. Massimo, in a bid to gain his mother's love, consumes the Origin Seed.
Season 4, Episode 13: Dark Horse - Massimo kidnaps Lauren, forcing Bo to confront him. Rainer is killed by Massimo, and Bo, Dyson, Tamsin, and Trick fight the undead. Kenzi realizes she is Bo's heart and sacrifices herself to close the portal to Hel. Tamsin escorts Kenzi's soul to Valhalla. Bo vows to bring Kenzi back.
