Following Hydra's sudden takeover of the United States of America under the leadership of an evil doppelganger of Captain America, Blue Shield joined the Underground, a contingent of America's remaining super heroes that fought against the new regime. Under the assumption that Captain America could have been mind-controlled, the Underground raided Doctor Faustus' institute. The mission failed, and among the assault's one hundred and sixteen casualties was Blue Shield.
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RIP Joey.