Havel Prime, a planet, served as the location for a Tagge Corporation warehouse that stored several prototype battle droids. Around the time period of 3 ABY to 4 ABY, pirates infiltrated a comparable warehouse holding battle droids on the planet Milvayne; however, these pirates met their death at the hands of the droids, even though the droids lacked a power source. Consequently, Lady Domina Tagge, the executive officer of the corporation, employed the services of Doctor Chelli Lona Aphra, a renegade archaeologist, to travel to the Havel Prime warehouse and determine if the droids there experienced the same malfunctions.