“Showdown Day!” Script by Jack Kirby. Pencils by Jack Kirby. Inks by Mike Royer. Cover by Jack Kirby and John Verpoorten. Inside Castle Zola, the star-spangled avenger and Donna Maria valiantly struggle against Doughboy and Primus, however they cannot escape. As a result Cap and his friend become the latest captives (or test subjects) for the twisted genius of Arnim Zola. In the meantime at SHIELD headquarters, Sharon Carter receives her first assignment regarding File 116. SHIELD doesn’t know who is creating the strange monsters around the world, but it has a lead on who might be financing Zola’s illicit activities. So the reinstated Agent 13 pays a visit to an elderly man named Cyrus Fenton. But be careful Sharon — looks can be very deceiving! Cameo appearances by the Falcon and the Red Skull. (Notes: Primus and Doughboy return in Captain America 275. This issue was reprinted in 2006 in the trade paperback: Captain America and the Falcon Swin