[s1e9] Wolf's Bane -

: After being scratched by Derek in a previous episode, Jackson is diagnosed with Aconitum (Wolfsbane) poisoning. This medical confirmation allows him to deduce that Scott is a werewolf, and he uses this information to blackmail Scott into helping him become one as well.

: Stiles continues to be the tactical heart of the duo, helping Derek track digital clues while navigating the awkwardness of having a wanted fugitive in his home. "Teen Wolf" Wolf's Bane (TV Episode 2011) - IMDb [S1E9] Wolf's Bane

" Wolf's Bane ," the ninth episode of 's first season, is a pivotal turning point where the mystery of the Alpha is finally solved and Jackson's growing suspicion of Scott reaches a boiling point. Key Plot Developments : After being scratched by Derek in a

: Derek remains a fugitive, forced to hide in Stiles’ bedroom to avoid the police and hunters. In a lighter moment, Stiles introduces Derek to Danny as his "Cousin Miguel" to maintain his cover. "Teen Wolf" Wolf's Bane (TV Episode 2011) -

: The episode reveals that Peter Hale, Derek’s uncle who was thought to be catatonic from the Hale House fire, is the Alpha werewolf. He killed Laura Hale to take her power and has been orchestrating the murders in Beacon Hills to avenge his family.