Stiles and Scott must fight to save the pack from Kate on this episode of Teen Wolf. 

Everyone plans to head to Mexico to save Scott and Kira.

Mason goes looking for Lydia and they both end up captured by a Berserker.

Lydia imagines her mom telling her how to heal.

Derek teaches Liam how to control the turn using the cheap ass triskelion trinket that was in the vault.

Peter hopes to use his daughter and the whole team to turn off their humanity and kill to save each other, knowing fully well Scott is a Berserker.

Derek believes he is mortally wounded.

The locals show up to the gunfight with Parrish and Argent in the lead!

Nobody notices the Berserker is incredibly short, but Kira tells Stiles it is Scott.

Derek dies (not).

Mason and Lydia give it there all. When they fail, Stilinski appears with a grenade of sorts. Front Facing Enemy. Ka-Pow!

Scott prevails, a life is lost and others evolve.

Derek is a black wolf.

Kira gets her first tail, made of obsidian from Mexico.

Lydia wants to help Parrish figure out what he is.