'Stranger Things' announces when it will end

The upside-down world of Eleven, Sheriff Jim Hopper and Hawkins, Indiana, is coming to an end. 'Stranger Things' will conclude in season 5, Netflix announced on Thursday

"Stranger Things" — one of Netflix's biggest franchises and most popular series — will conclude in season 5, the company announced on Thursday.

"Seven years ago, we planned out the complete story arc for 'Stranger Things.' At the time, we predicted the story would last four to five seasons," the Duffer Brothers, creators of the twisty science fiction series, wrote in a letter to fans. "It proved too large to tell in four but — as you'll see for yourselves — we are now hurtling toward our finale."

The news comes as Netflix announced that the next season of the series (season 4) will debut in two parts this summer. The first part will premiere on the service on May 27 and the second part will hit on July 1.

"With nine scripts, over eight-hundred pages, almost two years of filming, thousands of visual effects shots and a runtime nearly twice the length of any previous season, 'Stranger Things 4' was the most challenging season yet, but also the most rewarding one," the Duffer Brothers wrote.