Executive producers Rick Berman and Brannon Braga developed the story , which was turned into a teleplay by David Wilcox . It was directed by Mike Vejar , his fourth episode of the series , although he had also developed several more episodes of the other series in the franchise . Filming on " Marauders " began on August 21 , 2002 , utilising the standing ship sets . The shoot on the following day mostly took place on a sound stage , while the third day 's on set filming used the shuttlepod set as well as a newly created ship 's gym set . The remainder of the eight days filming took place on location at a quarry in Ventura County , California , located about an hour 's journey north west of Los Angeles . Temperatures was mild for that time of year , but the actors was still told to wear sunscreen and drink plenty of water . The actors portraying the Klingons joined on the second of the five days on location , with the majority of them played by stunt men . According to Bakula , the set used for the colony was the largest build so far for Enterprise .