Babylon 5 - Season 0 Episode 8

En route to Babylon 5 for the anniversary celebration, Sheridan begrudgingly gives an interview to ISN. He mentions his regret that Londo will not be at the celebration to represent the Centauri, but that his ship will be picking up Prince Regent Vintari, third in line to the throne. The night before the rendezvous, Galen appears to Sheridan in a dream, and shows him a vision of the destruction of New York City. In 30 years, he says, Emperor Vintari will attempt to restore the Republic’s former glory by destroying an old adversary – Earth. This can all be prevented if Sheridan will simply kill Vintari now. But when Sheridan meets the young man, who already feels trapped by the political intrigues of the Republic, he begins to doubt that he can kill a man for actions he has not yet committed.