2006 Dodge Stratus 4 gauage pro pwer cable

I have a 4 gauge pro power cable cut on my car. I'm not sure how it happened or anything, not even really sure where it attaches to but its cut. obviously its electrical because now the power lock and such dont want to work. Everything was working fifteen minutes ago but one by one everything is going. We parked the car about forty five minutes ago. and everything seemed fine. So anyway, any help would be nice.

Thanks