The story opens in medias res, with Professor X recruiting a new team of X-Men, to rescue the original X-Men ( Marvel Girl, Iceman and Angel, plus X-Men recruits Havok and Polaris), who had disappeared on a mission to the island of Krakoa, with only their leader Cyclops escaping. The comic also collects reprints from X-Men #43, #47 and #57. Following the May publication of Giant-Size X-Men #1, Marvel began again publishing new issues of X-Men with #94 in August 1975. From December 1970 through April 1975, Marvel reprinted many of the older X-Men issues as #67–93. The X-Men title stopped producing new stories after #66 in March 1970. The issue has been cited as a start point of the bronze age of comics, and is notable for expanding the membership of The X-Men from beyond the white American cast to one of a more international flavour, even if some characters were portrayed somewhat stereotypically. The 68-page book was published with a May 1975 cover date and distributed to newsstands in February of that year. Chronologically it is placed after X-Men #66 and before X-Men #94. The issue serves as a link between the original X-Men and a new team. Though not a regular issue, it contained the first new X-Men story in five years, titled Second Genesis. It was written by Len Wein and illustrated by Dave Cockrum. Giant-Size X-Men #1 was a special issue of the X-Men comic book series, published by Marvel Comics in 1975. Cover of Giant-Size X-Men #1 (May 1975) by Gil Kane and Dave Cockrum

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