Las Vegas 'X-FIles' episode to air

The episode of the Fox television show "The X-Files," which was filmed on location at the Monte Carlo hotel-casino, will air 9 p.m. Sunday on KVVU Channel 5.

The episode follows The Lone Gunmen characters -- Langly (Dean Haglund), Byers (Bruce Harwood) and Frohike (Tom Braidwood) -- who are sent to an international defense contractors' convention to uncover "Black Ops" agents posing as conventioneers, and discover a missing scientist.

Cast and crew recently spent two days filming at the hotel-casino, which marked the first time the show was filmed on location during its six-year run.

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