The One Chicago crossover tradition returned in early 2025, and while it was exciting, the three-episode event left much to be desired, meaning the next one must learn from its mistakes. NBC’s popular franchise (which consists of Chicago Fire, Chicago PD, and Chicago Med) has produced four crossovers over the years. The fourth one arrived more than five years after the last, as the shows were limited by what they could do after the COVID-19 pandemic. Now, though, One Chicago is back and better than ever. But it still needs to do better with its next crossover, whenever that happens.