TALES OF SUSPENSE #69 (Sept. 1965)
Cover Art by Jack Kirby & Don Heck
In Siberia, Czar Comrade Bullski has his enslaved scientists build him an armored suit in order for him to defeat Iron Man and score a propaganda victory for his leaders. The suit, made of titanium, is completed and Bullski, now calling himself Titanium Man, challenges Iron Man to battle him. They agree to meet in Siberia where the entire match is televised. However Iron Man soon discovers the battlefield has been booby trapped with land mines.
Bucky is captured by Nazis and brought to Greymoor castle to be “disposed of”. Captain America learns of the kidnap and heads to the castle to save him.