After being informed by his friend James Rhodes that there was trouble at Stark Archives, Tony Stark suited up as Iron Man and flew there. Upon his arrival, he found it under attack by the Roxxon Energy Corporation. He was then struck by an EMP bomb, which disabled him. He briefly lost consciousness and upon regaining it he activated his armor's power reserves.
Stark grimly decided that he should destroy the Dataspine to keep Roxxon from getting the archives. Outside, Rhodey, in his War Machine armor, intercepted some Roxxon Dropships to give Stark enough time to activate the Dataspine's self-destruct sequence. After the explosion, the two left, but Roxxon had already got what they came for.
When Ultimo grew so large that it weighed two hundred thousand tons, Iron Man and War Machine decided to isolate it to reduce collateral damage. J.A.R.V.I.S. lured it to the Stark Archives by firing up the deep reactors. With help from S.H.I.E.L.D., they were able to destroy it once and for all.