Most cities are happy with one river, but Pittsburgh is blessed with three! And they're three dammed good ones: The Monongahela, the Allegheny and the Ohio. This somewhat zany documentary looks at the dams, the locks, the history and some of the good stories about Pittsburgh's rivers. We meet people who work and play on these waters: on towboats, barges, packet boats, the Gateway Clippers and assorted pleasure boats. We wonder whatever happened to that B-25 that crashed into the Mon in 1956. We attend the Three Rivers Regatta, visit the Emsworth Locks, and see how competitive rowing, boating and fishing are returning to these rivers after decades of terrible pollution. We see where river water is transformed into drinking water, and how some of the Allegheny becomes Iron City Beer. C'mon along!