The Guardians of the Future

Picard collaborates with the evil aliens to steal people's neural energy. But then decides to use their snake-device to travel into the future. Mark Twain interrupts and jumps to the future himself instead, while Data is destroyed and Picard gets stuck in the past. Later in the 20'th century Picard is living in a safehouse and discovers that Voyager has finally arrived from the future. He uses Nazi super weapons which he helped construct during WW2 in order to destroy Voyager. Meanwhile Archer is also looking for Picard and managed to find Dukat, just before they are both assassinated by Picard. Picard lives on to become the emperor of the Federation.