4-21: For The Cause
Sisko's loyalties are tested when his girlfriend, Kassidy Yates, is an accused Maquis collaborator.
4-03: The Visitor
When a freak accident traps Sisko in a time paradox, only re-appearing every few years, Jake spends the remainder of his life trying to save him.
4-13: Return To Grace
Kira assists Gul Dukat, now in command of a freighter, to stop a Klingon Bird-of-Prey that destroyed an outpost with a joint Bajoran and Cardassian delegation.
4-15: Bar Association
Quark’s frustrated employees organize a union and strike, prompting intervention from Liquidator Brunt of the Ferengi Commerce Authority.