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.
5-01: Apocalypse Rising
When Gowron is believed to be a Changeling, Sisko, Odo, Miles, and Worf go undercover to expose the truth.
5-12: The Begotten
Odo tries to help a sick infant Changeling without assistance from Dr. Mora, the scientist who studied him. Meanwhile, Kira gives birth to Keiko and Mile’s baby.