Mjolnir lies on the moon, unable to be lifted! Something dark has befallen the God of Thunder, leaving him unworthy for the first time ever! But when Frost Giants invade Earth, the hammer will be lifted - and a mysterious woman will be transformed into an all-new version of the mighty Thor! Who is this new Goddess of Thunder? Not even Odin knows...but she may be Earth's only hope against the Frost Giants! Get ready for a Thor like you've never seen before, as this all-new heroine takes Midgard by storm! Plus: the Odinson clearly doesn't like that someone else is holding his hammer...it's Thor vs. Thor! And Odin, desperate to see Mjolnir returned, will call on some very dangerous, very unexpected allies. It's a bold new chapter in the storied history of Thor! Collecting Thor (2014) #1-5.

Collects Thor (2014) #6-8, Annual 1, What If? (1977) #10. Who is the new Thor? That's the question on everyone's lips. Most especially the original Thor! And now he starts to narrow down the list of suspects. Meanwhile, tensions continue to flare between the All-Mother and All-Father, Malekith the Dark Elf forges his most dangerous pact yet, and the new Thor prepares to face her greatest challenge: the unstoppable machine of death and destruction that is... the Destroyer! As the battle for Mjolnir rages on, an unexpected character makes a shocking return-and the new Thor's identity is revealed at last! Plus: Young Thor enters a drinking competition! The new Thor takes on a surprising foe! In the future, King Thor's granddaughters quest to find him the perfect birthday gift! And more!

Collects God Of Thunder #1-25, Thor (2014) #1-8, Thor Annual (2015) #1, Thors #1-4, Mighty Thor (2015) #1-12. Writer Jason Aaron and legendary artistic collaborators including Esad Ribic and Russell Dauterman begin a truly epic saga of Thor—whoever he or she may be! Across the ages, gods are vanishing, and Thor must unite with his past and future selves to stand against Gorr the God Butcher! Meanwhile, Malekith the Accursed begins a bloody rampage that will spread war throughout the realms. Which makes it a terrible time for the Odinson to be rendered unworthy of lifting Mjolnir! Another hero will hold the hammer high, fighting for Asgard and Midgard as Thor—the Goddess of Thunder! She’ll battle Malekith, Loki, Roxxon…and even Odin! But who is she under the mask? And what is this new Thor’s terrible secret?