Wiktionary
alt. (context idiomatic English) A great disaster happened or chaos ensued. phr. (context idiomatic English) A great disaster happened or chaos ensued.
Wikipedia
All Hell Broke Loose is a 1995 Israeli documentary that follows the victims of a Hamas suicide bombing in Israel a year after the attack.
Usage examples of "all hell broke loose".
In less than a millisecond the containment was pierced and all hell broke loose.
He posted an extra guard on the right flank and the day passed without incident, but shortly after dawn on the second day north of the Arkansas, all hell broke loose.
Our man just barely got the film to Persall before all hell broke loose.
The pope said something very unpontifical, and then all hell broke loose in the church.
Then I stepped back to the eaves and, about time I touched saddle, all hell broke loose inside.
Benito opened the outer door to Mercutio, just as all hell broke loose on the bridge.