Featured prominently in the Spanish Netflix series, 'Bella Ciao' is an Italian protest folk song from the late 19th century, sung by characters Professor and Berlin in Money Heist (also called LaCasadePapel).
Season 4 of the international drama titled, LaCasaDePapel in Spanish, promises to be a full-scale war as predicted by Tokyo at the conclusion of last season.
The result is the fifth part of 'LaCasadePapel.' The war reaches its most extreme and savage levels, but it is also the most epic and exciting season."