Ellery is a research scientist at the Mossdeep Space Center in the Hoenn region. He was part of the team responsible for the Talonflame2 (Fiarrow2 (ファイアロー2)) probe. It took a long time for it to arrive at the asteroid, it completed the mission without incident and returning to the planet.
He lead the coordinated destruction of the probe which had returned to the planets orbit. After a brief mishap with a fried computer, the probe was directed to the planets atmosphere to burn apart and the collected asteroid samples landed safely. He showed a lot of emotion after the capsule touchdown and the team all celebrated.