The video has Bella Ciao – a song associated with the series – playing over the top.
The identity of the five characters shown in the clip is clear but we’ve chosen to keep this secret so as not to ruin anything for fans.
It’s not known if the moment is a flashback, if it happens after the heist of the Bank of Spain, or if it’s a red herring.
Either way, it certainly poses a lot of questions for fans and promises the final series will be an explosive one.
Money Heist season 1-4 are available to stream on Netflix now.