2005 Chevy Impala power window

The window on the driver's side fell completely to the bottom of the door. I removed the door panel and could only lift the window about 2 inches with my hand. I could feel the cable was holding the window, but I could not free it. I removed the screws that mounted the motor and was able to free the cable enough to slide the window to a fully closed position. Now i need to know exactly what is wrong and how to repair it. The motor will try to move a little but that's all. I can't tell how the cable works or how it is attached or how to remove it if i need to replace it.















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