Here's the Overview from their website:
An urgent response to escalating gun violence in this country, This Flat Earth is a startling, deeply felt, and often humorous story of growing up in our confounding world, from the perspective of 13-year-old Julie. At Harlequin, this role will be played by two local child actors, alternating performances.
At a middle school in a seaside town, the unthinkable has happened, placing a bewildered community in the national spotlight. Stuck at home in a state of shocked limbo, Julie and Zander, two smart, funny, and startlingly authentic 13-year-olds, try to make sense of the chaos they witnessed, their awkward crushes, and an infinitely more complicated future – but the grown-ups are no help at all.