84. Paradise Lost

Summary

Sisko and Odo begin to suspect that Leyton is in fact the one behind both the wormhole's activity (through an officer planted on DS9), and the power failure, using an elite group of Academy cadets called Red Squad. There is indeed a Changeling presence on Earth--in fact, one of them taunts Sisko with it--but the larger danger is paranoia. Leyton frames Sisko as a Changeling, but Odo frees Sisko, who forces Leyton to admit his involvement, as the Defiant heads toward Earth with the guilty officer. Leyton, who was planning to take over Earth to fortify it against the Dominion, resigns.

Summary provided by The DS9 Encyclopedia and Lexicon by kind permission of Tracy Hemenover.