Derek is being pressured by his family to pick a mate, and somehow stumbles into a choice that they didn't expect and aren't sure they approve of....

The five times Derek called the Sheriff "Dad" on accident and the first time he did it on purpose.

Derek thinks that the mating rituals are overly romanticized bullshit, but claiming a mate and defending them from challengers is something werewolves do, and his pack can't afford to appear weak after the fire. Especially not when Deucalion and his friends are in town for the rituals. Enter Stiles Stilinski, who offers to let Derek claim him so he won't be overrun at the ceremonies. Nothing goes as expected.

After the events with Deucalion and Jennifer Blake, Derek goes on a search for his biological family. He, Stiles, and Cora head to New York City to try to find the family he doesn’t remember. It turns out that there was a lot to his adoption that he never knew.