It's not every day you meet a golden retriever in Thailand. When Niall met Tina, a dog shackled on a short chain and minutes from death, he saw something special in her. She turned out to be very special indeed. Her story sparked a global movement, so Niall made a promise: to build a hospital and treat every street dog who needs help.

When Niall came across a dog shackled to a short chain and in a poor state of health, something reminded him of his personal battle with addiction. He knew he had to rescue her immediately—golden retrievers are rare in Thailand, but there was just something about this one in particular that told him she was special. He just didn't know how special she was going to be.

He named her Tina, and what she did next is an incredible tale of survival, hope, and love. Tina changed the world and made it a better place for all the other dogs, whether they're street dogs from Thailand or rescue pups in Montana. The movement behind Tina has not stopped. It's only just begun. This is her story.