U.S. Sen. Cory Gardner was feeling the Halloween spirit when he sent these trick or tweets to Energy Secretary Rick Perry and the agency’s national labs.

All of them are obviously fans of the Netflix series Stranger Things, and are watching the second season that began over the weekend.

If you haven’t seen the series, it’s about an evil plot devised by a U.S. Energy lab after it discovers a parallel universe they hope will defeat the Russians during the Cold War.

It’s spooky and adorable. And with the exception of Winona Ryder’s over-the-top and annoying performance, we give it four stars.