(W) Mark Gruenwald (A) Dario Carrasco, Dave Hoover (CA) Dave Hoover. Written by MARK GRUENWALD Penciled by DAVE HOOVER & DARIO CARRASCO Cover by DAVE HOOVER After two eras spent protecting the world* Captain America has wrung almost all the power he can out of the Super-Soldier Serum but menaces like the Red Skull* Baron Zemo and the Serpent Society guarantee he'll go down fighting! And this time* he may go down for good. Will the shield finally yield? Guest-starring the Avengers and introducing Free Spirit and Jack Flag! Collecting CAPTAIN AMERICA #431-437. 168 PGS./Rated A ...$19.99