Upon news of a powerful new Federation mobile suit, Zeon propagandizes the EMS-10 Zudah mobile suit as superior to the Federation prototype. The 603rd is put in charge of testing three prototypes with the help of Zimmad Company test pilot Maj. Jean-Luc Duvall. However, the testing soon goes wrong after one of the Zudahs flies out of control and disintegrates during a combat simulation against a Musai warship, killing its pilot. The weapon test is then grounded indefinitely...