Kang the Conqueror, the time-traveling despot determined to rule the timestream, has menaced the Avengers and Fantastic Four for years. But when the Vision tries a new strategy against their longtime nemesis, he ignites a temporal war - and Kang's first strike is a killer! Can team of Avengers gathered from across time save history? Plus: Kang sends Kamala Khan back to the Avengers' earliest days; battles symbiotic threats with Spider-Man, Rocket Raccoon, the Black Knight and Monica Rambeau; and targets Moon Knight's patron Khonshu! And can the FF survive when Kang's many personas - from Rama-Tut to Immortus - unite against them? Collecting: Fantastic Four (1961) 19; Avengers (1963) 8; All-New, All-Different Avengers (2015) 13; Avengers (2016) 1-6; Avengers: Back to Basics (2018) 5-6; Moon Knight Annual (2019) 1; Symbiote Spider-Man: King in Black (2020) 1-5; Fantastic Four (2018) 35 (A story); Timeless (2021) 1