What If El Train Falls off the Track? | Big Chicago Stories

Elevated trains are a reliable symbol of Chicago, but what if an el train falls off the track? That's exactly what happened at the height of evening rush hour on Feb. 4, 1977, at the corner of Lake and Wabash. Eleven people were killed and scores were injured. A new look at the investigation reveals what happened and what commuters still need to know.
From a skyscraper-climbing spider-man to the shocking and devastating Loop train crash, a new NBC Chicago docuseries has brought some of the city's biggest stories back to the screen.