All these lives (Ziall and Sterek)

There are two different packs, The Bradford pack and The Hale pack.

Zayn Malik is the alpha of his pack, Derek is the alpha of his.
Both of them haven't found their mates.

Derek is closer to his mate than he realises while Zayn doesn't know his mate at all.

Niall is new to school and becomes best friends with Stiles, they have a lot in common and are
both gay but haven't found the right person yet.
STILES is friends with Derek but wants to be more, he wants to be with Derek.

What happens when danger arrives in Beacon Hills?
What happens when Derk and Zayn meet and when Zayn and Niall meet?