Thor: Gods & Men

And there shall come a reckoning! The heavens tremble as all the Thunder God has built comes to ruins - and those closest to Thor betray him! Only one can wield Mjolnir, the mighty mystic Uru hammer. Will it be Thor - or his son, Magni? And must the son kill the father to restore peace on Earth? Collecting THOR (1998) #68-79.