Agent McSweeten has come to Parker for help. His father Peter, a former agent, is dying of pancreatic cancer, and he wants the teams help tracking down the one felon his father wasn’t able to catch, D.B. Cooper. Nate is reluctant, but relents and allows them to help. Hardison and Nate meet with the Peter McSweeten's partner, Steve Reynalds. His wife was a stewardess on the plane that was hijacked and so it’s personal for him. They ask him if he has a theory on who D.B. Cooper was, and he tells them several that are all as plausible as the other.