Sisko builds a new version of an ancient Bajoran space vessel in an effort to prove the truth behind an 800-year-old legend. According to the legend, the Bajorans used such ships, which use solar pressure for propulsion, to explore their star system, even going as far as Cardassia. After initially declining his father's invitation, Jake reconsiders and joins his father on the adventure. But the ship malfunctions, and Jake and Sisko must regain control before the solar sails tear themselves apart and leave the pair stranded in space. Meanwhile, Dr. Bashir encounters a classmate from Starfleet Medical.

Bari Hochwald (Dr. Elizabeth Lense)
Marc Alaimo (Gul Dukat)
Chase Masterson (Leeta)

• Sisko grows his goatee in this episode.
  
• Ben and Jake make the trip to Cardassia, proving that the "lowly" Bajorans had space flight before the "superior" Cardassians. The tachyon eddies in the Denorios Belt pushed the ship's solar sails to warp speed, which carried the ship to the Cardassian System.
  
• Jake wants to introduce Ben to a freighter captain. (Jake introduces him to Kasidy Yates in the next episode.)
  
• Dr. Lense was the validictorian of Julian's graduating class at Starfleet Medical (Class of 2369). Julian graduated second in his class because he missed one question on his final exam. Dr. Lense is currently Chief Medical Officer of the U.S.S. Lexington.