On August 5, 2011, Six Flags Great America announced on their official Facebook page that the Iron Wolf would be closed on September 5, 2011. The ride was subsequently removed and relocated to Six Flags America where it operates as Apocalypse: The Last Stand . On August 1, 2013, Six Flags Great America began a teaser campaign entitled "Follow the Journey". In mid-August 2013, it was revealed Six Flags Great America would be building a 165 foot high roller coaster, with plans being lodged with the local zoning committee to exceed the 125 foot height limit imposed on the park.