Fan Casting Thor: Book 2: For Tomorrow

Three centuries in the future mankind knows peace and technological perfection, however one man is not happy with the state of the peaceful world. This man is the mad scientist known as Zarrko, who has built a time machine to travel into the past in the hopes of procuring humanity's powerful atomic weapons so that he might use them to conquer his future. In the present day, Thor has agreed to aid the US Military in missile tests, flying along with test missiles to review their efficiency. Hoping to test the effects of their new Cobalt bomb on human beings by studying how it effects Thor, the army has the Thunder God strapped to measuring devices and have him stand in close proximity of this new experimental bomb. However, the test does not go as planned, as Zarrko appears in his time machine and pilfers the device and escapes into the future before Thor can stop him. Promising to recover the bomb, Thor summons his father Odin and asks how he might travel into the future. Odin guides him to using his hammer to time travel by tying a fragment of Zarrko's craft (broken off in the brief battle between Thor and Zarrko) and takes the fragment to Dr Erik Selvig, who uses it to finish a time machine that can and does teleport Thor to the future year of 2262, where he finds that Zarrko has used the C-Bomb to take over the future Earth.