King of Heroes, meet Young Justice

Two years after the fifth Grail War. A year after the death of Wally West. All Servants of the summoned sent back to their own time. Young Heroes taking their own path. An arrogant King brought back by the Grail itself. A family torn by its own past. Spirits summoned once more to be servants of War. Secrets held by both sides. Old faces reunited. Heroes needed to save the world.