Alan Gable, the Bulletproof Spy, is an agent with the OPC.
More on what that acronym stands for in a moment. First, we need to know that our first meeting with this interesting fellow is in 1965 when he is on assignment in Italy to steal vital intelligence from that country and get it out safely. Things are not going well and he is being chased and his beautiful sports car is being pummeled with bullets and he finally has no choice but to plunge it and himself off the highway into the ocean.
Flashback then to New York City, five years earlier, when Gable is a training officer for OPC trying to come up with a new training method for the bureau. He is heading home for the day, climbing into the Plymouth that he was driving but which belonged to his mother. He is suddenly attacked; enduring "the foreign feeling of teeth, sharp teeth, inhuman teeth, tearing into his shoulder."
When he comes to, he finds his life as he knew it is over. His life as it might become beckons but only if he agrees with Attorney General who greets him with the offer to let the world think he is dead while he continues to serve the country he loves. "Do you want to play dead, or do you want to die for real? You could serve your country, do things no man's ever done before. But you'll never come back here. You'll never see your mother. You're dead, kid, for all intents and purposes. But you could do some good before you go." Gable chose to stay alive, sort of.
Now back to OPC. I do not know what it stands for. I believe from scant evidence that it is connected to the Justice Department since apparently the Attorney General is connected but other than that, no clue. Except for the fact that the operations that Gable does on its behalf take him to numerous placed around the world up against enemies to the security of the U.S. so whatever the stated 'mission parameters the department has, it is not fighting crime.
As for what the biting mentioned earlier did to him, that's a matter that is best left to the reader to discover.
- As bullets ping away at the car he is driving, Alan Gable muses, "Well, that almost went according to plan".