Marvel Comics' "Avengers: Infinity War - Prelude" #1 from Will Corona Pilgrim and Tigh Walker, is the official prequel series showcasing events from the end of Marvel Studios "Captain America: Civil War", leading up to "Avengers: Infinity War" opening May 8, 2018:
"...there is a reconciliation between 'T'Challa', 'Steve' and 'Bucky', with Bucky's return to 'cryostasis' on the orders of 'Wakandan' scientist 'Shuri', the younger sister of T-Challa'.
"Shuri explains the 'cryo-freeze' is necessary for her to make a map of the mind of 'Bucky', enabling her to remove his deadly programming manually, but with the risk of 'rebooting' his brain entirely, stripping him of all memories..."
Click the images to enlarge and Sneak Peek "Captain America: Civil War"...