A rebellion breaks out on the planet Garm, which in itself is not something unusual for the worlds of the Imperium. However, Garm is a long-time ally of the Order of the Space Wolves, a place no less sacred to them than their native Fenris. It was to this world that many millennia ago the primarch of the Order, Leman Russ, bequeathed to keep his Spear. And now the sanctuary is desecrated and the legendary weapon is stolen by the minions of Chaos. Enraged Wolves break through a flotilla of Chaos ships to Garm, land on the planet and enter into battle with a ruthless enemy. The matter is complicated by the fact that this enemy has already been defeated by the Wolves once, but his hatred is so great that there is not enough place for it in the underworld...