She was standing guard and staring helplessly as she knew she was unable to help the pup alone. When she saw the rescue team, she knew that everything would be better so she put all her faith to them
One of the rescuers picked up the puppy who cried out in pain. Mama cried out after him too and then papa showed up out of nowhere to make sure that his family is okay, perhaps, or to attend to his pup's cries, who knows. This was a very touching scene.