Question: what is the final episode of deep space nine?
Answer: "What You Leave Behind" is the series finale of the television show Star Trek: Deep Space Nine, the 175th and 176th episodes, the 25th and 26th episodes of the seventh season. The episode was written by showrunner Ira Steven Behr and Hans Beimler and directed by Allan Kroeker. It originally aired on June 2, 1999.