Grinding/clicking noise during drain-will not drain

Suddenly, the dishwasher will not drain. It will wash and spin the arm, but when it clicks to the drain cycle, I here a grinding/clicking noise and no water will drain out. It has a sound similar to an electrical short, but I know it is not that, just trying to give idea of sound. I feel like it may be the pump gone bad as it has filter to stop debris. What do you think?