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Angel, season 5 episode 8 «Destiny»: air date November 19, 2003. Episode overview, season trailer and the cast of Angel.
Spike receives a mysterious box of "flashy" in the mail and is shocked when it somehow recorporealizes him. He's thrilled to be solid again, but when odd things start happening at Wolfram & Hart, Eve says that they now have a problem. With Spike an un-ghosted Vampire Champion, the Shanshu Prophesy could also apply to him. Spike & Angel have to try and figure out which one of them is destined to become human again.