For half a century, Leonard Bernstein and Herbert von Karajan were the world's most celebrated figures in classical music and the fiercest of rivals. Their influence transcended music into popular culture, politics, and almost every facet of the modern landscape. Late in their lives these titans of classical music unexpectedly crossed paths one last time. Inspired by true events, Last Call takes us to Vienna as both men seek to find common ground through their music and their lives over one last drink.