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.
4-18: Hard Time
Miles struggles re-adjusting to normal life after having the realistic memories of serving a long, difficult prison sentence transplanted into his mind.