Hawkins National Laboratory
A creature lurks inside a sinister government research facility in episode 1x01 “Chapter One: The Vanishing of Will Beyers”. Eleven remembers being put into solitary in episode 1x02 “Chapter Two: The Weirdo on Maple Street”. Chief Hopper leads a brief police search of the lab for signs of Will in episode 1x03 “Chapter Three: Holly, Jolly”.
Appears in 13 additional episodes.
Chapter Five: The Flea and the Acrobat
Hopper sneaks into the lab.
Chapter Six: The Monster
Lucas watches the lab as Dr. Brenner leads the teams out.
Chapter Seven: The Bathtub
Joyce and Hopper try to sneak back into the lab but are quickly caught by security.
Chapter Eight: The Upside Down
Dr. Brenner leaves with the team from the lab.
Chapter One: Madmax
Joyce and Hopper accompany Will to his regular checkup at the lab.
Chapter Three: The Pollywog
Hopper brings the map of diseased plants to Dr. Owens to show him that the blight is centering on the lab.
Chapter Four: Will the Wise
Nancy and Jonathan are taken to the lab and Dr. Owens gives them a stern talking to.
Chapter Five: Dig Dug
The scientists at the lab demonstrate the unique properties of the soil to Dr. Owens.
Chapter Six: The Spy
Will is taken to the lab for treatment after his fit on the farm.
Chapter Eight: The Mind Flayer
A swarm of demodogs climb out of the pit and swarm throughout the facility.
Chapter Nine: The Gate
Eleven and Hopper sneak through the lab into the basement.
Chapter Three: The Case of the Missing Lifeguard
Joyce and Hopper break into the condemned lab to confirm it is empty and a mysterious individual attacks Hopper.
Also appears in “Chapter Four: The Body”.