Chicago Fire season 14 episode 13

Episode title: Reckoning (I)

Firehouse 51 is called to an airfield when a passenger jet suddenly goes silent mid-air, triggering a high-stakes emergency. Their discovery cracks open a bigger and deadlier mystery - one with consequences that could put countless lives in jeopardy. The crossover continues on Chicago Med S11E13 Reckoning (II) and Chicago P.D. S13E13 Reckoning (III).