The Odinson's desperate search to regain his worthiness has taken him out into the cosmos, where he's learned of the existence of a mysterious other Mjolnir. This weapon of unimaginable power, a relic from a dead universe, is the key to Odinson's redemption—but some of the greatest villains of the Marvel Universe are now anxious to get their hands on it as well. Can The Odinson reclaim his honor, or will the power of thunder be wielded for evil? The quest for the hammer begins here.

The Realm of Old Asgard has vanished, taking with it Odinson's hope for redemption. But good tidings from Beta Ray Bill might breathe new life into the quest. For Bill knows the fate of the Realm Eternal. To win back Odinson's honor, the brothers in arms must infiltrate the fortress of THE COLLECTOR.

The Odinson and Beta Ray Bill continue their quest to take the hammer of the Ultimate Thor from the clutches of the Collector. Elsewhere, a mysterious and powerful cosmic entity has learned of the weapon's location and makes plans to claim the hammer as his own. And also, the Odinson gets a new pet?!

The Odinson's quest is impeded when Proxima Midnight and the Black Swan seek to battle with him! But are the two acting alone or is there someone else pulling their strings? Don't miss the debut of the Odinson's all-new look!

The hammer of the Ultimate Thor is finally within reach of Asgard's fallen son. Is redemption finally at hand? No matter what happens next, life will never be the same for the Odinson.

Collecting The Unworthy Thor #1-5. Unfit to lift his hammer, with another now wielding the power of Thor, the Odinson's desperate quest to regain his worthiness takes him out into the cosmos - where he's learned of the existence of a mysterious other Mjolnir! This weapon of ultimate power, a relic from a dead universe, is the key to the Odinson's redemption - but some of the greatest villains of the Marvel Universe are anxious to get their hands on it as well. And when the Realm of Old Asgard vanishes, the Odinson's hopes might go with it - unless good tidings from Beta Ray Bill offer fresh hope! Can the Odinson reclaim his honor, or will the power of thunder be wielded for evil? Let the battle for the hammer commence!