Netflix has released a full trailer for the third season of its hit series “Stranger Things.”

Set to a remix of the Who’s “Baba O’Riley,” the trailer features all the series’ popular characters hanging out and enjoying a summer in the mid-1980s.

But things are never easy in the fictional town of Hawkins, Indiana – and dark and sinister things soon begin to happen.

The trailer also seems to hint at conflict among the show’s younger cast – as the characters start entering their teen years and learn to grow up.

All episodes of the third season will be available on Netflix July 4.