The one where Sam talks about Køpi and other squats in Berlin.

References:

https://koepi137.net/history.html

https://en.wikipedia.org/wiki/K%C3%B8pi#CITEREFSandler2016

https://www.thelocal.de/20140404/berlin-squats-at-your-service

https://theculturetrip.com/europe/germany/berlin/articles/shifting-tides-the-rise-and-fall-of-squatting-culture-in-berlin/