The Stranger Things season 3 trailer is here and there's a new monster


All is well in Hawkins, right? WRONG.

The Stranger Things season three trailer is here and danger lurks! 

"We're not kids anymore. I mean, what did you think? We were just going to sit in my basement all day and play games for the rest of our lives?" Mike says.

"One summer can change everything," the trailer teases.