Iron Man #218

In "Deep Trouble!", Iron Man suits up in his newly developed deep-sea armor for a high-stakes mission beneath the Atlantic, tasked with preventing enemy forces from detonating a long-buried toxic gas tank in the wreckage of the Titanic. Written by David Michelinie and Bob Layton, with art by Bob Layton and John Romita, and a cover by Bob Layton, this 1987 issue blends Cold War tension with cutting-edge tech in a mission that pushes Tony Stark to his limits.