The Most Powerful Foe

Danny Phantom faces his most powerful foe, but this foe isn't a ghost. He is a stranger from the deep depths of space. He looks like a human, bust most definitely isn't. He was stronger and faster than any of them. He is superior to Danny in every way. But that's the present. A week before a mystery guy shows up to train Danny for this battle. Will it be enough, can Danny succeed?