Twilight's Last Gleaming (Captain America Epic Collection, Volume 21)

Is this the end of Captain America? As the Super-Soldier Serum in his veins decays, Steve Rogers' health continues to worsen - so he's going to need a little help to carry on shield-slinging, especially against Baron Zemo and his new Baroness! Diamondback may be having doubts about their partnership, but new heroes Free Spirit and Jack Flag join the good fight against the Serpent Society! And Tony Stark has his own way of lending a hand: designing an incapacitated Cap his very own suit of armor! Will it be enough for Steve to survive an epic clash between the Avengers, A.I.M., M.O.D.O.K. and the Red Skull? And left with 24 hours to live, how will Cap spend his final day?