James Robb is an agent with the F.B.I.
As the Special Agent in Charge of the Tampa, Florida office, Robb and his people are interested in crime. Law-breakers. The normal miscreants for whom the Bureau was created in the first place. He was not looking to get involved in cloak and dagger work or the messy business of terrorisms but as a highly trained and deeply motivated veteran, he goes where the clues lead him and they lead him to the hunt for the successor of Bin Laden.
If I were to consider which large metropolitan area would be a launching point for terrorist activity, Tampa would not be in my top ten, or possibly even twenty, but that could be why in this series of adventures, it is. Gifted with access throughout the country via several means, air, land, and water, it is large enough to have plenty of places to hide out and prepare and then enact them. And with lots of opportunity for these terrorists to mingle with a good variety of criminals willing to do anything for money, it seems a good choice. As a result, Robb and his team keep themselves very busy.
If Robb were a regular agent, it might make sense for him to go off on his own but as a SAC, it would not and luckily for us, this series makes sense. Robb has a darn good team that he commands and as such he has others to do a lot of the heavy listing as is reasonable for his position. That does not mean, though, that he is not certain to get deeply involved in the action. There is something about Robb that seems to attract bullets and bombs and he gets more than his fair share of both over the recorded adventures we have.