my brake pedal goes almost all the way to the floor then i get my brakes? on 1999 Ford Contour

hi i have a 1999 ford contour and when i push on the brake pedal i get nothing till 3/4's of the way down but i get all of the brakes dont know what to do.

Asked by for the 1999 Ford Contour
adj rear brakes if they are drum if not bleed entire brk system