Iron Man plunges into a deep-sea world of trouble and faces off against a sunken shipload of rampaging, cyberdrug-hacked mecha berserkers, only to wind up in far worse peril when S.H.I.E.L.D.’s “capekilling” unit finally locates him and closes in for the high-tech kill, even as the viral enemy infecting the armor begins her final, fatal cyberattack...

Rated T+