GOLDEN CASTLE OF STROMBERG is infecting the world’s Duel Disks with a virus that will destroy KaibaCorp! If Yugi doesn't destroy the card, the virus program can't be stopped - but GOLDEN CASTLE OF STROMBERG can't be destroyed by traps or spells! How can Yugi destroy a card that was engineered for ultimate survival and optimal destruction? KaibaCorp is on the edge of bankruptcy in the conclusion of the KC Grand Championship saga!