The harrowing tale of Char Aznable, the ace pilot dubbed "Red Comet," and his sister Sayla Mass unfolds amidst the events preceding the One Year War. The Zabi family's ascent to power, the birth of the Principality of Zeon, the early days of notable aces like Ramba Ral and the Black Tri-Stars, the advancement of the revolutionary mobile suit technology, and the journey towards conflict against the Earth Federation are all captured on screen for the first time.