Y/n is the younger sibling of the Winchester brothers but they live in LA and works for S.W.A.T. Their team doesn’t know the truth behind y/ns life and all the gaps in their files. When their brothers (Sam and Dean Winchester) come to town things start getting a little weird. Y/n has started acting different and their team notices. They are never around their team anymore unless they are in the field or working in a job. Y/ns team is determined to figure out what is going on.