India, Nov. 28 -- The much-anticipated series, Stranger Things Season 5: Volume 1, is now streaming on Netflix, bringing the long-running series back for its final arc. Directed by the Duffer Brothers, the new season casts Millie Bobby Brown, Finn Wolfhard, Noah Schnapp, Winona Ryder, Jamie Campbell Bower and David Harbour in a story that continues directly after the events of Season 4.

The season opens with familiar characters facing new threats, but it also revisits key moments from earlier years. These flashbacks required a major technical shift behind the scenes: Netflix has used digital de-ageing to recreate younger versions of several actors. Let's take a look at what it is and how the ageing tech actually works.

The series premie...