When Egon Stetmann began his scientific career at the Dominion's Tyrador III research facility, he found himself surrounded by equally young and idealistic peers, most of who shared his belief that their generation would create a better future for all terrans in the Koprulu sector.

Split into separate teams throughout the sprawling facility, these ambitious new scientists went to work on an array of assignments. Stetmann was paired with the brilliant Isabella Yorin, and they were tasked with creating a portable force field of ionized gas akin to protoss plasma shields, albeit without the aid of a psi-field generator. Believing that this device would have military and civilian applications, Stetmann devoted himself to the project and created a working prototype after only a few months.