Stiles got kicked out of the pack by Derek after he confessed to the latter. He also found out that none of his "friends" care for him as they all bully and taunt him. Stiles was depressed until he got caught by Mr.Jang who is a psycho alpha hunted by the Hale pack in this story. He got CPH4 forced into him and gained superpowers and suddenly it was an Erica Reyes transformation. (the blue drug doesn't have any self-destroying effects).