The NBC Bay Area Investigative Unit spent more than a year recording on BART, interviewing passengers, and questioning top transit officials to find out how a once world-class transportation system got derailed.

Season 2 of the digital series is out now. Check out new episodes, watch digital extras, and get caught up on Season 1.

Need to contact our Investigative Unit?

You can remain anonymous

Submit tips

1-888-996-TIPS

Bigad.Shaban@nbcuni.com