Spread across the country but connected through private Facebook groups, over 30,000 mothers in America—many from conservative, Christian backgrounds—fully accept their LGBTQ+ children. And they call themselves "mama bears" because while their love is warm and fuzzy, they fight ferociously to make the world kinder and safer for all LGBTQ+ people. Mama Bears explores the journeys of two mama bears and a young lesbian whose struggle for self-acceptance exemplifies why the mama bears movement is vitally important.