Dog Rescue Shelter worker in Mladenovac, Serbia, saw a mother dog and her puppies living in a cardboard box and knew he had to help. All bundled up, the family of three knew they couldn't survive like this forever.
It would take time, but he eventually earned Mama's trust. Since a result, he should probably begin with the puppies, as they would hold her interest longer, and then refocus on her.
So that the family might be reunited, he managed to seize her and place her in a crate of her own for transfer to the safe house. Later, they both went to a foster home until they found their permanent families.