Nala, who was found wandering the streets all alone, was brought to Christchurch Bull Breed Rescue, a shelter in New Zealand. She just sat in her cage, too sad and scared to get close to anyone.

"This girl arrived with us a few weeks ago. She had been wandering the streets for some time and was extremely shut down and terrified," Abbey van der Plas, who runs the shelter, posted on Facebook back in March. "I spent her entire first and second day sitting on the floor trying to gain her trust. I took hours and hours of footage trying to catch 'the moment' that she decided to trust me."

Van der Plas brought Zach, her 7-year-old son, in to help. What happens as soon as Nala sees Zach come into the room is truly incredible - and the moment has made its rounds all around the world.

The moment Nala sees Zach, she totally transforms.

But even though Nala's story and video was viewed thousands and thousands of times, Nala still hasn't found a home.

"I'm not really sure why Nala hasn't found a home yet," van der Plas told The Dodo. "She's had a heap of applications from the USA and Australia but not many from New Zealand and none that have been suitable."

Nala has some separation anxiety after everything she went through, van der Plas explained: "She needs a compassionate owner who is around often and that's going to help her overcome it."

"She has already come so far," van der Plas said. "She just needs that perfect person that can take her the rest of the way."

To learn how you can adopt Nala, click here.

Check out another video about a pit bull who is learning to trust again: