Mariam tries to share blessed Zamzam water with everyone she meets on Hajj, but what if she runs out? Mariam is one of the millions of people from all over the world who has come to Makkah for the annual pilgrimage of Hajj, and she overflows with excitement and awe. Mama tells her, "Hajj is a time to do good, share, and be thankful." But what good can Mariam do? That's it! She'll share Zamzam, blessed water from an anceint well, with everyone she meets. As Mariam begins her Hajj and shares her Zamzam, she meets friends from all over the world who have all come to Makkah for their pilgrimage. In return for her Zamzam, she learns new ways to say thank you, tries new foods and drinks, and learns that when you share and help others, someone will help you when you need it too.