Will Riker's renegade duplicate steals the Defiant and attacks Cardassian territory, forcing Sisko to assist Gul Dukat in stopping him. Tom Riker and the Maquis crew head for the Orias System, where the Obsidian Order has been building a fleet of warships, a violation of Cardassian law.

Jonathan Frakes (Lt. Cmdr. W. Thomas Riker)
Marc Alaimo (Gul Dukat)
Tricia O'Neil (Korinas)
Shannon Cochran (Kalita)
Michael Canavan (Tamal)
Robert Kerbeck (Cardassian Soldier)

• Thomas Riker was found in the Next Generation episode "Second Chances".
  
• The purpose of the Orias fleet is discovered in the DS9 episode "Improbable Cause".
  
• Tom Riker finally surrenders, and is sent to a Cardassian prison for life. The Maquis crew will be given a Federation trial.
  
• This episode marks the first guest appearance of a Next Generation cast member since The Next Generation series finale.
  
• Shannon Cochran as Kalita also appeared in the TNG episode "Preemptive Strike". She later played General Martok's wife Sirella in the episode "You Are Cordially Invited".