Operation: S. I. N.
Marvel · 2015 · 5 issues
About the series
Kathryn Immonen and artist Rich Ellis brought a sharp, espionage-fueled energy to Marvel's Operation: S. I. N., a five-issue series from 2015. Set during the Cold War era, it follows Peggy Carter as she leads an undercover S.H.I.E.L.D. mission alongside a brash young Howard Stark, blending cloak-and-dagger intrigue with the nascent Marvel Universe's secret history. The series stands as a tight, character-driven thriller that deepens the legacy of two iconic figures before their cinematic fame.