Please note the following schedule changes to the Discovery Channel primetime line-up:

JUNGLE GOLD's behind-the-scenes special will air this Friday, Sept. 6, at 8 PM. The 2-hour season finale of JUNGLE GOLD will follow from 9-11 PM. In the high-charged finale, fortune seekers George and Scott (along with the production crew) are attacked by armed militia and forced to make an emergency evacuation.

The final two episodes of ALASKAN STEEL MEN will air this Sunday, Sept. 8, beginning at 9 PM. The series follows master welder Dennis Butts and his crew through the harsh environment of Kodiak, Alaska, with some of the most dangerous welding jobs anywhere.

JUNGLE GOLD

BEHIND-THE-SCENES SPECIAL: JUNGLE GOLD WILD RIDE

Friday, September 6, at 8 PM E/P on the Discovery Channel

The production crew captures the untold story of the making of Jungle Gold featuring hostile confrontations, underground explosions, accidents in the jungle and torrential storms.

2-HOUR SEASON FINALE: JUNGLE GOLD

Friday, September 6, at 9 PM E/P on the Discovery Channel

It's the season finale episode and Scott and George are all set to mine their Fahiakobo gold claim. But an attack by armed militia on a neighboring site forces them, along with the entire production crew, to make a dangerous emergency evacuation.

Video preview: http://www.youtube.com/watch?v=gP7bhdb3II4

ALASKAN STEEL MEN

ALASKAN STEEL MEN -- "First Response"

Sunday, September 8 at 9 PM E/P on the Discovery Channel

Master welder Dennis Butts and his team must make an emergency trip by plane to repair a crack in the hull of the Marcy J. Can they make it in time before the engine room completely floods? Then, Kodiak's only hydro-electric plant has an emergency shutdown that could cause a major blackout in the middle of the Alaskan winter. Dennis and George rush to make the tricky repairs to this one-of-a-kind turbine part. Meanwhile, accounts manager Theresa enlists Scottie's help to teach a deadbeat captain a lesson he will never forget.

Video preview: http://www.youtube.com/watch?v=BZ6el8nku9o

SEASON FINALE: ALASKAN STEEL MEN - "Fire and Ice"

Sunday, September 8 at 10 PM E/P on the Discovery Channel

In the final episode of ALASKAN STEEL MEN, Dennis Butts and his team of master welders find themselves caught up in a series of major white-knuckle crises. A barge off the coast of Anchorage is leaking after getting struck by a large chunk of ice. Dennis and fellow welder Scottie rush to the scene, but the repair goes terribly wrong. Can they fight against the surging seawater and make the repair before completely sinking? Back in Kodiak, Cooper gets his first assignment and is forced to work with a demanding skipper. Meanwhile, accounts manager Theresa teaches Dean how to settle financial disputes face-to-face. But while driving to see a customer, the two get stuck in deep snow on a remote mountain with no help in sight.