Two Cardassians are expected at the station to help do a science project with the wormhole

A Bajoran guy warns Sisko about a prophecy about three snakes and a sword of stars and bad things follow. He thinks the Cardassians are the snakes.

But there are only two Cardassians that arrive, so that’s why that guy is dumb.

But then a third one comes!

Then there’s a comet! It has to be the sword of stars!

This Cardassian lady doesn’t like O’Brien because he’s a male

But then she seems to like him because he’s a male.

They shoot the comet

This Cardassian works for the Obsidian Order and she sabotaged things up.

Turns out the prophecy still was true, it just meant totally different stuff than they thought. The “three snakes” meant three pieces of a comet, obviously.

At the end this guy warns Sisko that he will face a fiery trial, just like how those three Cardassians were snakes.