Season 2

Allison and Scott kept a secret relationship. Lydia started to listen voices in her head caused by the bite of Peter. A series of murders happen in Beacon Hills, later Derek and Scott discovered that the murderer is Jackson become Kanima. Jackson went to a party and the boys went to protected the people and catch him because is dangerous. At the party Victoria Argent discovered that Scott was a werewolf and tried to kill him, but Derek bits her and she becomes one of them. When Victoria Argent arrived home she was crying but she forced her husband to kill her because he didn't want to become a werewolf.  Derek started to recruited people for his herd like Boyd, Isaac and Erika. The second season ends when Scott, Derek, Lydia and Stiles went to try to Jackson will cease to be the Kanima but without having to kill him. Finally they achieved their objective and Jackson became a werewolf.