While there isn't a single definitive work titled "5x3 — Deep Story," the phrase typically refers to , which is Season 5, Episode 3 of Star Trek: Deep Space Nine .

: Introduces the character Ensign Ro and delves into the history of the Bajoran people.

: Worf finds himself attracted to Grilka, Quark’s ex-wife, but feels he cannot pursue her due to his lack of honor in the eyes of the Klingon Empire.