Wesker returns in "Resident Evil 5" conspiring with the pharmaceutical division of the TRICELL conglomerate as a means to create the "Uroboros virus", an enhanced virus derived from the Progenitor virus, with which he ultimately plans to release into the Earth's atmosphere. Before being killed by Wesker, Oswell Spencer reveals that Wesker was the survivor of a Progenitor virus variant administration experiment—the "Wesker Project." (It is stated in the "RE5" downloadable content "Lost in Nightmares" that another Wesker, Alex, survived as well). He would eventually enact a plot to transform the human race into powerful superhumans like himself, and be a god to rule over them in a new age. Chris and Sheva Alomar prevent the worldwide infection and ultimately kill Wesker inside a volcano at the end of the game. Masachika Kawata, the game's producer, confirmed that Wesker perished in the game's finale. Some concept artwork for "Resident Evil 5" also indicated that Wesker was to have been in his human form while in lava and then blasted with missiles from an F-16 Fighting Falcon, before eventually being shot in the head on the landing platform by Chris and Sheva.