"The Avengers of tomorrow face their baptism of fire! A thousand years from now, Vance Astro, Yondu, Martinex and Charlie-27 -- the Guardians of the Galaxy -- rise to retake Earth from reptilian raiders! But, they're not just building on the heroism of past centuries, they're recruiting from it! Captain America, Dr. Strange, the Thing, the Hulk and more join the star-spanning heroes in the greatest war the future ever saw! Then, as the Guardians help a planet in turmoil rebuild, threats rise from two other worlds: one of them living, the other gone mad! It's a cosmic action as you like it, featuring the introduction of Nikki and the origin of Starhawk! Guest-starring the Silver Surfer!" --Page 4 of cover.

Contains material originally published in the 1970s in single magazine form as Marvel Super Heroes #18 (1967); Marvel Two-in-One #4-5 (1974); Giant-size Defenders #5 (1975); Defenders (1st series) #26-29 (1975); and Marvel Presents #3-12 (1976-77).