5-22: Children of Time
The Defiant crew encounter their own multi-generational descendants on an alien planet.
5-06: Trials and Tribble-ations
To prevent an assassination of Captain James T. Kirk, Sisko and crew travel back in time to the Tribble-incident of the original Enterprise.
5-21: Soldiers of the Empire
Jadzia joins Worf when he becomes first officer on General Martok's ship.