Searching for Sif in New York, Thor comes across the time funnel surrounding the Atomic Research Center where she vanished. He's drawn into it as well, where he finds himself battling trollish mutates in a cataclysmic future.
After freeing Sif, he finds out that all a part of a scheme of old nemesis Pluto, while inside the Center a mysterious being in a cocoon awakes. And setting up future stories in Asgard, Odin is still curious about the origin of Galactus.
Fun stuff, I thought the splash pages in this one were especially well done, including the one of the ruined future landscape.
Colletta inks the cover and 20-page story.