Right you are!
[url=http://www.tvtome.com/tvtome/servlet/GuidePageServlet/showid-38/epid-14827/]LoneGunmen Episode 1[/url]
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"the Gunmen become more and more entangled in a terrorist plot (Scenario 12-D), eventually facing off against a governmental power known as Overlord -- who also happens to be Mr. Helm. Byers and his father (who is not actually dead after all) get on the targeted aircraft in an attempt to sniff out the bomb with what look like home-made mini hydrocarbon sniffers. This might have worked, but unfortunately, there's no bomb on the airplane. It's being controlled, like Bert Byers' car, by someone else -- Overlord and his henchgeek, obviously.
"A note for the techies in the crowd: the air scene of the plane approaching the [b]World Trade Center[/b] was actually shot by the aerial photographer from a helicopter, so the skyline and approach you see is real."
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Hmmm... coincidence????