2018 feels like a very long time ago but for a brief period that Christmas, the world became obsessed with Netflix's Bird Box.

There were memes aplenty as the thriller became a huge hit for the streaming service especially as it spawned the viral Bird Box Challenge where people blindfolded themselves and attempted to complete everyday tasks.

Starring Sandra Bullock, Bird Box saw a woman played by Bullock, attempt to survive in a post-apocalyptic scenario after Earth is invaded by an entity that causes people to kill themselves if they look at it.

Read more: Sandra Bullock recalls moment Keanu Reeves surprised her on doorstep with romantic gift

While it received mixed reviews for its high concept and screenplay, the film became Netflix's most watched original movie after it premiered.

Now, the streamer have made the surprise announcement that a spin-off with all new characters is set to land very, very shortly.

Read on for everything we know about Bird Box Barcelona.

Bird Box Barcelona release date

Netflix's surprise announcement also includes a release date and Bird Box Barcelona will land exclusively on the streamer on 14 July, 2023.

Bird Box Barcelona plot

Produced in secret and announced out of the blue, the spin-off will continue in very much the same vein as the original film starring Bullock, Trevante Rhodes and John Malkovich.

Read more: Trent Reznor shares disappointment with Bird Box

An official synopsis released by Netflix says: "After a mysterious force decimates the world’s population, Sebastian must navigate his own survival journey through the desolate streets of Barcelona. As he forms uneasy alliances with other survivors and they try to escape the city, an unexpected and even more sinister threat grows."

Bird Box Barcelona cast

Unfortunately, none of the original cast of Bird Box will be returning for the spin-off. That wouldn't be possible in most cases anyway as most characters did not survive the end of the original film but Bullock will not be appearing in the spin-off.

Featuring an almost exclusively Spanish cast, Bird Box Barcelona stars Diego Calva, who was most recently Golden Globe nominated for his performance in the divisive epic Babylon which also featured Margot Robbie and Brad Pitt.

Read more: Bird Box hit with footage backlash

The cast also includes Mario Casas and Alejandra Howard while British actor and Barbarian star Georgina Campbell will also appear.

Bird Box Barcelona trailer

As part of the announcement, Netflix released an eerie looking trailer that can be viewed below.

Bird Box Barcelona will stream on Netflix from 14 July.