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All in an effort to break up
a hard rock blockage that if not cleared soon, could result in catastrophic
flooding throughout the city
a hard rock blockage that if not cleared soon, could result in catastrophic
flooding throughout the city
Full Transcript
00:00:01.000 --> 00:00:03.009
All in an effort to break up
a hard rock blockage
00:00:03.896 --> 00:00:05.686
that if not cleared soon,
00:00:05.689 --> 00:00:09.279
could result in catastrophic
flooding throughout the city.
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Movie Summary
An up-close look at the heroes that keep America's sewer systems running.