Ordered to transport a delegation of argumentative Tellarites to a peace conference with the blue-skinned Andorians, Archer and the crew find themselves drawn into a confusing, dangerous situation when a secret Romulan vessel begins attacking ships on all sides, including Enterprise.

Jeffrey Combs (Commander Shran)
Lee Arenberg (Ambassador Gral)
Molly Brink (Lieutenant Talas)
J. Michael Flynn (Nijil)
Brian Thompson (Admiral Valdore)

Kevin Brief (Naarg)
Jermaine Soto (MACO Crewman)

• Part 1 of 3.
  
• T'Pol receives a communication from Koss: their marriage is officially disolved.
  
• The prototype drone ship is covered with subspace transceivers and holographic emitters, allowing it to visually appear as other ships. Its disruptors can also mimic other ship's weapon systems.
  
• The end scene reveals the Romulans aren't actually on the ship, but on Romulus. (The CGI city was originally created for Star Trek: Nemesis.)
  
• The classic Trek episode "Journey to Babel" also features Vulcans, Andorians, and Tellarite ambassadors.