Theo Raeken, the new boy, catches the attention of (Y/N), cousin of true alpha Scott McCall. With Scott's "abilities" still secret from (Y/N), Theo makes a move on the cousin, who is, understandably, off limits.
Stiles is having a tough time at school, it was fine for a bit when he had Scott there with him. But Scott left school to be able to train properly as an alpha for his own pack, by none other than Derek Hale, another alpha of another pack.
Stiles likes Derek a lot and doesn't want him to find out what he's going through because he's gay.