'Stranger Things' season 4 drops new teaser

Netflix has dropped a new teaser of the fourth season of "Stranger Things."

Titled "Eleven, are you listening?," the scenes were shot inside the Hawkins National Laboratory featuring kids in hospital gowns.

Later, Matthew Modine's character Dr. Martin Brenner entered the room where the children were and said: "Good morning, children" to which they responded with "Good morning, Papa," a nickname that he had in the show.

In the last part of the teaser was a close-up eyes shot of Millie Bobby Brown's Eleven.

Prior, Netflix released its first teaser in February titled "From Russia with love…"

In there, it was revealed that David Harbour's Jim Hopper, Eleven's adoptive father, was still alive.

"Stranger Things" is an American science-fiction horror television series created by the Duffer Brothers and first streamed online in 2016.