Published May 1970 by Marvel.
"Mystery on the Moon!" Script by Stan Lee. Pencils by Jack Kirby. Inks by Joe Sinnott. Cover by Jack Kirby and Joe Sinnott. In his Baxter Building laboratory, Mr. Fantastic intercepts a cryptic message from the Kree empire! Reed and his fantastic partners aren't exactly sure what it means, but they think it's related to NASA's upcoming lunar landing at Tranquility Base! While the Apollo 11 mission blasts off from the Kennedy Space Center, the Fantastic Four take off for the South Pacific to find the Earth source of the mysterious transmission! Upon arriving at a suspicious island, the FF discover an old enemy…Sentry 459. The Kree sentry plans to sabotage America's moon landing! But the FF can't let that happen! If Ben Grimm can take one small step for a man, Neil Armstrong will take one giant leap for mankind! Cameo appearances by Alicia Masters, Franklin, and Neil Armstrong. (Note: Sentry 459 appears next in Avengers 89.) 32 pages Cover price $0.15.