Feast your eyes on long-unseen footage from the classic Doctor Who story, "The Web of Fear" — the first appearance of the Doctor's longtime friend Alistair Gordon Lethbridge-Stewart. This story is going up for sale at iTunes in its entirety, and we're thrilled to premiere the trailer exclusively at io9.

After months of speculation (and dogged reporting by BleedingCool), it's official — you can be among the first people to watch "The Web of Fear" in 45 years, over at iTunes. (Apart from episode three, which remains missing.) Also recovered, in its entirety: the classic Troughton story "The Enemy of the World," in which Troughton plays both the Doctor and the evil dictator Salamander.

Both of these stories have long been considered among the greatest lost Doctor Who adventures, and they give us more of a view of the under-represented "monster season," Troughton's second year in the role.

Here's what the official BBC press release says:

New York – October 10, 2013 – BBC Worldwide North America announces that a stash of BBC master tapes from the 1960s featuring missing episodes of Doctor Who has been recovered in Nigeria, Africa. The BBC has re-mastered the tapes, and is making two stories, The Enemy of the World and The Web of Fear, now available exclusively on iTunes (www.itunes.com/DoctorWho).

Eleven Doctor Who episodes were discovered (nine of which have not been seen for 46 years) by Philip Morris, director of Television International Enterprises Archive, by tracking records of tape shipments made by the BBC to Africa for transmission. Morris says, “The tapes had been left gathering dust in a store room at a television relay station in Nigeria. I remember wiping the dust off the masking tape on the canisters and my heart missed a beat as I saw the words ‘Doctor Who’. When I read the story code I realized I’d found something pretty special.”

BBC Worldwide has re-mastered these episodes to restore them to the fantastic quality that audiences expect from Doctor Who. The titles are available exclusively on iTunes - www.itunes.com/DoctorWho.

The first recovered story, The Enemy of the World, is a six-episode tale which first aired on the BBC in December 1967. The story features Patrick Troughton as both the Second Doctor and his antagonist (Ramon Salamander), alongside companions Jamie (Frazer Hines) and Victoria (Deborah Watling). Episodes 1, 2, 4, 5 and 6 had previously been missing from the BBC Archives, and were returned by Morris.

Also recovered is the 1968 six-episode story, The Web of Fear. Also starring Patrick Troughton alongside Frazer Hines and Deborah Watling the story introduces Nicholas Courtney for the first time as Colonel Lethbridge-Stewart (who later returns as Brigadier Lethbridge-Stewart). Episodes 2-6 were feared lost, but now episodes 2, 4, 5, and 6 have been recovered. With episode 3 still missing, the restoration team has reconstructed this part of the story using a selection of the 37 images that were still available from the episode along with the original audio, which has been restored.

Beth Clearfield, SVP, Digital Distribution & Business Development says, “For many, this will be their first chance to watch these long-lost Doctor Who stories. We’re thrilled to partner with iTunes in bringing these missing gems back to new and long-time fans after all these years.”