Rosie O’Donnell’s documentary special “Unleashing Hope: The Power of Service Dogs for Children With Autism” will begin streaming Tuesday, April 22 on Hulu. April is Autism Awareness Month.

“Unleashing Hope” spotlights the Guide Dogs of America’s (Gda) service dog program for children on the autism spectrum and takes viewers on a personal journey, showcasing how a service dog named Kuma transformed the lives of O’Donnell and her child with autism, Clay.

“My child is completely different because of the dog. They saved my child’s life. The healing started,” O’Donnell told Variety’s Marc Malkin exclusively when production on the documentary started last fall. Clay, who identifies as nonbinary and uses they/them pronouns, was diagnosed with autism when they were two years old. “They have calmed down. They have a sense of connection. I was in shock. At the end of the year, they were getting most improved student at school.