This comic book is the Book Three of the "1963" series, and features two stories. The first one involves the character "U.S.A." , the "Ultimate Special Agent", as he is hired to impersonate Pres. Kennedy during his infamous and fatal ( in our reality ) motorcade in Dallas. "U.S.A." encounters assasins along with a Russian supervillain called the "Red Brain".
The second story involves "The Hypernaut" as he is caught up in a dimensional portal and encounters alien creatures.