To celebrate fifty issues of Unbeatable Squirrel Girl across two volumes, Doreen Green takes on none other than... Kang the Conqueror! It's a battle for the ages across space and time, as Kang attacks Doreen Green in three distinct eras! And if that isn't cosmic enough for you, what would you say to Squirrel Girl jumping head-first into the War of the Realms?! When Doreen's good pal Loki recruits her as part of a secret mission, you might wonder if he's up to something. And he probably is - he's the God of Lies, after all. But this isn't Doreen's first Asgardian rodeo! Get ready to experience Squirrel Girl's first big event crossover - and don't miss the shocking reveal that's been in the works for literal years! Collects The Unbeatable Squirrel Girl #42-46.