97 Disco... Brakes acting funny today and went to the floor. So, I sucked the old fluid out of the brake reservoir with a syringe. The fluid was definitely not clear. It was very cloudy. I had a friend pump the brakes as I started on the rear right tire and bled the brakes (After i filled the reservoir with new DOT 4 fluid). I went around to all 4 tires but got to the drivers side front and it bled a few times then nothing. No fluid would come out. I took the brake line off from the ABS module to the brake caliper and no fluid came out.

What next???

Thank you