Collections Avengers: Ultron Unleashed PF
August 1999, in collection
reprints
*
Avengers #57
"Behold... The Vision!"
October 1968
(10/1968)
The Vision attacks the Avengers, then turns against his creator, Ultron-5
*
Avengers #58
"Even an Android Can Cry"
November 1968
(11/1968)
The team learns the origin of Ultron, and of the Vision, who becomes an Avenger
*
Avengers #170
"... Though Hell Should Bar the Way!"
April 1978, in collection
(4/1978*)
Pietro vanishes from Attilan; Ultron's bride re-awakens and attempts to find him
*
Avengers #171
"... Where Angels Fear to Tread"
May 1978, in collection
(5/1978*)
The Avengers and Ms. Marvel find Ultron and Jocasta hidden in a convent