The unbeatable Squirrel Girl

With her combination of wit, empathy and squirrel powers, Doreen Green - the unbeatable Squirrel Girl - is all that stands between Earth and destruction. Well, Doreen plus her friends Tippy-Toe (a squirrel) and Nancy (a regular human with no powers). What hope does Earth have if she gets hurled back to the 60s and erased from history? What invincible Avenger can she call on to help? Can they avert doom or will it go wrong? Howard the Duck hopes not ... he has an appointment for a crossover! COLLECTS THE UNBEATABLE SQUIRREL GIRL 1-5, HOWARD THE DUCK 5.