I saw this documentary when it originally aired on the Discovery Channel, and was more than a little disappointed. All the hype it got made me think they had FOUND Nefertiti, and that the discovery was the greatest thing since Tut himself. After spending two hours (excessive--it could have easily been one) waiting for the moment of groundbreaking acheivement--nothing more than speculation.
Essentially, there's a lady who claims to have found Nefertiti's remains stashed away in an out of the way place in the Valley of the Kings. The figure is deformed, the valuables gone, and only the damaged corpse remains, yet through various tests of sorts (which are very fascinating themselves), she is convinced that she has, indeed, found the lost queen. That's the claim, but it is really nothing more than speculation. There is some compelling evidence, sure, but nothing conclusive.
The sad thing is that several other major Egyptologists--the guy who found KV5 and the Egyptian in charge of approving digs in the Valley of the Kings--aren't convinced it's Nefertiti. It is possible that they don't want to admit that their work has been overshadowed, but I doubt that's the case. Essentially, this woman is convinced she's found Nefertiti, but she's about the only one convinced of that.
Again I have to say that this documentary was substantially less interesting than it was hyped up to be. It's a dig, maybe there's some cool stuff, that's it. Overall it was interesting, but certainly not worth owning unless you are into Egyptology in a big way. If you want a great documentary on recent finds, try Egypt: Beyond the Pyramids.