Some of the wonkier things in the series (Functional Magic, for instance) might be due to the Literary Agent Hypothesis: we're seeing this through the eyes of the admittedly-imbalanced protagonist. —-
Seven Days takes place in the Stargate Universe.Well, there's no denying that the aliens are quite similar to the Asgard, and that the people Frank works for could easily be a part of the NID. Even the time travel could be cause by some sort of strange effect from the Naquadah used to power the sphere.
Frank is a Time LordCome on, didn't you see this coming?
Frank is Doc BrownHe just went further into the future, where they have even better Rejuvenation Clinics, dumped his wife for a new model, dumped her as well, went back to the 90's, and got amnesia.