Isaac's father is murdered by a strange creature. Scott discovers Isaac is now a werewolf. Isaac is then taken into custody for his father's murder. When it is revealed that the werewolf hunters are going to kill Isaac, Scott, Stiles and Derek plan to save him, as he is innocent. At the jail, Isaac transforms and breaks out, advancing on Stiles. Derek, being the Alpha werewolf, is able to force him into submission. Jackson, who had set up a video camera overnight to record his transformation, is upset to learn that nothing happened.