The Mighty World of Marvel #61

In "The Monster and the Man-Beast!", the Hulk, transformed back into Bruce Banner after a massive explosion, finds himself stranded in the Savage Land, where he's rescued by Ka-Zar from a relentless attack by the Swamp Men. With the jungle lord’s urgent plea, Banner must help stop a strange machine that’s throwing the planet’s weather into chaos—though when the Swamp Men return, the Hulk’s rage takes over, and the mission fades into the background.