"United" is the 13th episode of the fourth season of the American science fiction television series Star Trek: Enterprise and the 89th episode overall. It was first broadcast on the UPN network on February 4, 2005. It is the second of a three-part story which included the previous episode "Babel One", and the following episode, "The Aenar". "United" was written by Judith and Garfield Reeves-Stevens from a story idea by show runner Manny Coto. It was directed by David Livingston, his third of the season. Set in the 22nd century, the series follows the adventures of the first Starfleet starship Enterprise, registration NX-01. In this episode, two of the crew are trapped on the Romulan drone ship while Captain Jonathan Archer (Scott Bakula) on the Enterprise attempts to gain the co-operation of the Andorians and Tellarites in tracking down the drone. His plan is complicated when Commander Shran (Jeffrey Combs) challenges a Tellarite to a duel, causing Archer to step in. After he defeats Shran, the races work together and force the retreat of the Romulan vessel and the missing crewman are recovered. The episode was filmed over seven days, reusing the standing sets and those created for the previous episode. The duel was choreographed by Vince Deadrick Jr., and the Ushaan-Tor weapon itself was created by Dan Curry. "United" was watched by 2.81 million viewers on the first broadcast. Critics responded favourably to the episode, comparing it to the Star Trek: The Original Series episode "Amok Time" and the Andorians' actions to those of Klingons elsewhere in the franchise. The episode was Emmy Award nominated for makeup. Plot "United" continues from the events in "Babel One". On Romulus, Admiral Valdore (Brian Thompson), Romulan scientist Nijil (J. Michael Flynn), and their pilot continue to control the mysterious "marauder", cloaking it to look like Enterprise and then using it to destroy a Rigelian vessel. Despite this success, Senator Vrax (Geno Silva) chastises them for losing full control of their drone since Commander Charles "Trip" Tucker III (Connor Trinneer) and Lieutenant Malcolm Reed (Dominic Keating) are still on board. Valdore and Nijil then work to trap Tucker inside a service junction as he attempts to divert power. After incapacitating him with leaked radiation coolant, Valdore then orders Reed to re-establish the damaged warp matrix on the drone or see his crewmate die. Reed complies in order to rescue Tucker. Meanwhile, aboard Enterprise,