S03E19: Letharia Vulpina
Scott and the others try to prevent a disaster; Lydia and Allison seek out an unlikely teacher.
Previous Episode 
Season 1
Wolf Moon
S1E1 / 05 Jun 2011
Second Chance at First Line
S1E2 / 06 Jun 2011
Pack Mentality
S1E3 / 13 Jun 2011
Magic Bullet
S1E4 / 20 Jun 2011
The Tell
S1E5 / 27 Jun 2011
Heart Monitor
S1E6 / 04 Jul 2011
Night School
S1E7 / 11 Jul 2011
Lunatic
S1E8 / 18 Jul 2011
Wolf's Bane
S1E9 / 25 Jul 2011
Co-Captain
S1E10 / 01 Aug 2011
Formality
S1E11 / 08 Aug 2011
Code Breaker
S1E12 / 15 Aug 2011
Season 2
Omega
S2E1 / 03 Jun 2012
Shape Shifted
S2E2 / 04 Jun 2012
Ice Pick
S2E3 / 11 Jun 2012
Abomination
S2E4 / 18 Jun 2012
Venomous
S2E5 / 25 Jun 2012
Frenemy
S2E6 / 02 Jul 2012
Restraint
S2E7 / 09 Jul 2012
Raving
S2E8 / 16 Jul 2012
Party Guessed
S2E9 / 23 Jul 2012
Fury
S2E10 / 30 Jul 2012
Battlefield
S2E11 / 06 Aug 2012
Master Plan
S2E12 / 13 Aug 2012
Season 3
Tattoo
S3E1 / 03 Jun 2013
Chaos Rising
S3E2 / 10 Jun 2013
Fireflies
S3E3 / 17 Jun 2013
Unleashed
S3E4 / 24 Jun 2013
Frayed
S3E5 / 01 Jul 2013
Motel California
S3E6 / 08 Jul 2013
Currents
S3E7 / 15 Jul 2013
Visionary
S3E8 / 22 Jul 2013
The Girl Who Knew Too Much
S3E9 / 29 Jul 2013
The Overlooked
S3E10 / 05 Aug 2013
Alpha Pact
S3E11 / 12 Aug 2013
Lunar Ellipse
S3E12 / 19 Aug 2013
Anchors
S3E13 / 06 Jan 2014
More Bad Than Good
S3E14 / 13 Jan 2014
Galvanize
S3E15 / 20 Jan 2014
Illuminated
S3E16 / 27 Jan 2014
Silverfinger
S3E17 / 03 Feb 2014
Riddled
S3E18 / 10 Feb 2014
Letharia Vulpina
S3E19 / 17 Feb 2014
Echo House
S3E20 / 24 Feb 2014
The Fox and the Wolf
S3E21 / 03 Mar 2014
De-Void
S3E22 / 10 Mar 2014
Insatiable
S3E23 / 17 Mar 2014
The Divine Move
S3E24 / 24 Mar 2014
Season 4
The Dark Moon
S4E1 / 23 Jun 2014
117
S4E2 / 30 Jun 2014
Muted
S4E3 / 07 Jul 2014
The Benefactor
S4E4 / 14 Jul 2014
I.E.D.
S4E5 / 21 Jul 2014
Orphaned
S4E6 / 28 Jul 2014
Weaponized
S4E7 / 04 Aug 2014
Time of Death
S4E8 / 11 Aug 2014
Perishable
S4E9 / 18 Aug 2014
Monstrous
S4E10 / 24 Aug 2014
A Promise to the Dead
S4E11 / 01 Sep 2014
Smoke and Mirrors
S4E12 / 08 Sep 2014
Season 5
Creatures of the Night
S5E1 / 29 Jun 2015
Parasomnia
S5E2 / 30 Jun 2015
Dreamcatchers
S5E3 / 06 Jul 2015
Condition Terminal
S5E4 / 13 Jul 2015
A Novel Approach
S5E5 / 20 Jul 2015
Required Reading
S5E6 / 27 Jul 2015
Strange Frequencies
S5E7 / 03 Aug 2015
Ouroboros
S5E8 / 10 Aug 2015
Lies of Omission
S5E9 / 17 Aug 2015
Status Asthmaticus
S5E10 / 24 Aug 2015
The Last Chimera
S5E11 / 05 Jan 2016
Damnatio Memoriae
S5E12 / 12 Jan 2016
Codominance
S5E13 / 19 Jan 2016
The Sword and the Spirit
S5E14 / 26 Jan 2016
Amplification
S5E15 / 02 Feb 2016
Lie Ability
S5E16 / 09 Feb 2016
A Credible Threat
S5E17 / 16 Feb 2016
Maid of Gévaudan
S5E18 / 23 Feb 2016
The Beast of Beacon Hills
S5E19 / 01 Mar 2016
Apotheosis
S5E20 / 08 Mar 2016
Season 6
Memory Lost
S6E1 / 15 Nov 2016
Superposition
S6E2 / 22 Nov 2016
Sundowning
S6E3 / 29 Nov 2016
Relics
S6E4 / 06 Dec 2016
Radio Silence
S6E5 / 13 Dec 2016
Ghosted
S6E6 / 03 Jan 2017
Heartless
S6E7 / 10 Jan 2017
Blitzkrieg
S6E8 / 17 Jan 2017
Memory Found
S6E9 / 24 Jan 2017
Riders on the Storm
S6E10 / 31 Jan 2017
Said The Spider To The Fly
S6E11 / 30 Jul 2017
Raw Talent
S6E12 / 06 Aug 2017
After Images
S6E13 / 13 Aug 2017
Face-to-Faceless
S6E14 / 20 Aug 2017
Pressure Test
S6E15 / 20 Aug 2017
Triggers
S6E16 / 03 Sep 2017
Werewolves of London
S6E17 / 10 Sep 2017
Genotype
S6E18 / 17 Sep 2017
Broken Glass
S6E19 / 17 Sep 2017
The Wolves of War
S6E20 / 24 Sep 2017
Tyler Posey
Scott McCall
Holland Roden
Lydia Martin
Shelley Hennig
Malia Tate
Dylan Sprayberry
Liam Dunbar
Linden Ashby
Noah Stilinski
Melissa Ponzio
Melissa McCall
