Isaac mustered out of the Navy in the late 80s and into a job at Danger International. He flew the majority of missions in Indochina and Polynesia, putting the Dangers and their allies anywhere they needed to go in the southern Pacific. Even he couldn't fly forever, though, and a stroke in his mid-50s left his hands too shaky to handle a control stick. He moved into semi-retirement, handling Danger International's missions on the Ring of Fire. These days he works out of DI's offices in Emerald City; the plaque on his door reads "Senior Chief of Field Consultation."
Though he pilots a desk these days, Isaac retains connections to AEGIS, the CIA, NATO, and many other alphabet soup organizations that don't admit to everything they do. He's a valuable source of information on different government organizations and can act as an introduction to the old boys club of covert operations. He can also be a colorful individual within Emerald City or Danger International.