Main Article: Dr. Deaton
Deaton and Lydia Martin watch a young Derek Hale while he is unconscious and the vet is unsure of how Derek is suddenly a teenager again. (Read More...)
Deaton helps save a Brett Talbot from Wolfsbane poisoning. He later saves Liam Dunbar when he was poisoned with the same species of yellow Wolfsbane. (Read More...)
Deaton is visited by Satomi. He discovers the distemper virus is being used to kill werewolves and that a special mushroom tea is the cure. (Read More...)
Deaton meets Dr. Valack at Eichen House who gives him an answer as to what is happening to Derek which puts him in a coma that Lydia wakes him out of. (Read More...)