[Johnny's face is pained for a moment as he tries of a way to think of explaining this succinctly and quickly.]

In Exsilium, the Initiative - the guys I worked for - messed around with time. A lot. And after doin' that for awhile? One day, things started turnin' bad. You can only fuck around with time for so long before somethin' goes wrong. And this very thing happened. 'Cept there, it was a whole day, and here-- Here it's just, like, a couple of hours. Like half a day. And we time traveled! It was only once, but maybe it was all that was needed to set it off.