Gerard becomes the Kanima's master after drowning Matt. Way harsh, Gramps!
Beacon Hills has a surprisingly hopping gay club scene. (Arguably the show's best scene ever, FYI.)
Stiles' father loses his job as sheriff when Stiles and Scott's tampering with evidence comes to light. Quick, someone pass us a tissue!
Scott's mom watches him turn into a werewolf and turns away in fear/disbelief. Typical mother-son drama.
Peter uses Lydia to come back from the dead. Typical guy behavior.
Allison's mom, Victoria, almost kills Scott. First, with her car, then with a vaporizer. Surprisingly, the latter is more effective.
Matt is the Kanima's master. And he's pissed.
In the show's most shocking cliffhanger to date, it's revealed that Victoria was bitten by Derek, so the hunter is now the hunted.
The snake Jackson ate comes out of his eye. (Excuse us while we throw up everything we've ever eaten in our lives.)
Jackson, one of the show's six regulars, is the Kanima, aka the show's big (murdering!) bad. This. Freakin'. Show.
Lydia's mysterious young boyfriend is actually Peter Hale...and a hallucination. Hate it when that happens.
Victoria kills herself instead of becoming a werewolf.