In case you’re still lost as to what the heck is going on, a Scientology Run is when people film themselves charging into a Church of Scientology building to see how far they can get before being caught and booted out. It’s a notoriously secretive religion, so it turns the whole place into an action-movie set piece where the protagonist is trying to infiltrate a compound while fending off its legion of foot soldiers, clad in terrifying white button-ups with black vests.
Of all the brainerot fads I’ve seen come and go over the past few decades, I think this is the one I like the most. Anything that pisses off the CoS gets my seal of approval.