Speed Gibson is an agent with the I.S.P.
That acronym stands for the International Secret Police, a rather ominous sounding name for an organization which spans the globe fighting criminals in every nook and crany. According to its write-up, its agents are stalwart men who give their all to keep the citizens of the world safe.
The official oath of the I.S.P. says:
"As a member of the International Secret Police, I promise to obey and protect law and order in my country, my state and my city, and wherever my duties may take me, I will cooperate with all law-enforcement agencies.
"I pledge myself to keep physically strong and mentally alert for every duty I am assigned to ... and I further promise to respect the code of the International Secret Police."
One of these agents is Clint Barlow, said to be "one of the youngest, most brilliant, and trusted men in the" I.S.P. He is also the uncle and guardian of Speed Gibson.
Gibson is described as a 15-year old who is a "typical American boy, interested in short-wave radio, aviation, and most of, in the International Secret Police". Further, "because of his interest and his evident aptitude in" the I.S.P. and because he is aware that Uncle Clint is a decorated I.S.P. operative, he has been studying hard under Barlow's tutelage to know everything we will be asked about when it comes time to volunteer to be an agent himself. "Speed looks on crime as the height of weakness failure and cowardice and vowed to do his part to end it."
When we first meet Gibson and Uncle Clint, the elder has just completed a particularly grueling assignment and is looking forward to a vacation with Gibson somewhere relaxing. Gibson, being 15 and not having put his life on the line as his uncle has, is looking for some place with a lot of excitement. His wish, and not his uncle's, will be granted when the Chief calls with an important assignment needing Clint's expertise and, surprisingly to Clint, needs the help of young Gibson.
Thus Gibson is able to become an extremely young but highly motivated member of the I.S.P.
"Sufferin' whangdoodles," as Gibson is prone to shout when he gets excited. Apparently, a whangdoodle is a 'fanciful creature in folklore and children's literature'. Not sure what makes this one sufferin'.