So I put my emergence brake on. Just as it built up resistance it when to the floor. The cable is still attached to the brakes and the pedal Any clue what happen. Dont see any where the cable has broken.

 

If both ends of the cable look ok
Either the cable is broke inside the sheathing somewhere, or one of the actuation pieces inside the drum that actually spreads the brake shoes apart is broken. I'd check the cables first by pulling with pliers at the ends and make sure it doesn't pull foo far out.
if the cables look ok you gotta pull the wheel, caliper and hat rotor to see what's up in there.