- Warriors Three (First appearance)
- United States of America
- Svartalfheim (Mentioned) (Destroyed)
- Niffleheim (Mentioned)
Skaar accidentally triggers Ragnarok and incites the ire of Asgard. Detained by the all-seeing, all-knowing guardian of the Bifrost, Heimdall, the Hulks must save Skaar and battle Thor. Soon the Heroes find they must put aside their differences to fight against Malekith the Accursed and save the realm.