Captain America has battled soldiers, terrorists and villains of all kinds. Now he'll face a far more complicated enemy: his own body. When S.H.I.E.L.D. discovers that Cap is harboring an extinction-level pathogen hidden in his cells for decades, Cap's greatest fear is realized: Until the virus can be cured, he'll have to go into deep freeze. But he won't be alone. Years ago, Cap's greatest enemy managed the biggest coup of his career when he implanted...