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The current is strong.
When you wrap up in branches, it makes a perfect dam
When you wrap up in branches, it makes a perfect dam
Full Transcript
00:00:01.000 --> 00:00:04.004
The current is strong.
When you wrap up in branches,
00:00:04.034 --> 00:00:05.544
it makes a perfect dam.
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Movie Summary
An up-close look at the heroes that keep America's sewer systems running.