"When the Nazis invade Amsterdam, singer Johanna Vos watches in horror as the vibrant music scene she loves is all but erased, her Jewish friends forbidden from performing with her onstage. Alongside her friend Jakob, Johanna helps organize the Artists' Resistance, an underground network allowing Jews to perform at house concerts hosted by their allies. When Johanna hears of a Jewish orphan headed for deportation, she does not think twice. She takes...