Finished the second episode..
I think stranger things gave up a plot point too fast in the beginning and that is....
I think Ryder's new boyfield is the russian spy. I know, I know... they supposedly know each other from highschool, but he could be an imposter. He even goes on to say 'you barely even knew me in highschool' when they were mackin in the back of the store.
Also, when her kids are talking bout how Kenny rogers is lame, he goes on to say that he likes him.
Maybe I'm thinking too much bout it, but I feel that it's obvious