Calendula is the oldest black coven in the nation, brandishing more than 300 years of magical power. Founded in 1694, Tituba Valley, Massachusetts is home to the world's biggest game changers and influencers who just happen to be witches, specifically, African American witches. The women of the coven are at the top of their game, and have been running things for centuries. Heck, they even helped the nation's first woman gain the US presidency. But not everyone's a fan, and just like others over the years, some folks want to take them down. When a mysterious force threatens their magic, the witches are more vulnerable than ever. And if they don't get on the same page, they will lose their magic forever.