Star Trek: 10 Worst Alternate Realities We've Seen (So Far)
2. A Future With No Federation
The Temporal Wars are among the most devastating events that have yet to be truly explored in Star Trek. They were introduced in Enterprise, though their effects were still felt in Discovery's far future. One being linking both eras was Agent Daniels.
The temporal agent was tasked with protecting Captain Archer, among other things. To this end, he plucked the captain from the timeline in Shockwave Part 1, though instantly regretted this choice. Removing Archer from historical events rewrote history, erasing the Federation from existence.
In Daniels' time, what had once been a beautiful city was reduced to rubble, all historical data was replacing with paper books, and life had ceased to exist. Though both men managed to undo this cataclysm, it served to highlight the need for the Federation in the history of the galaxy - not least, it seemed, against the Romulan Star Empire.