Harry Flynn is an agent of Department Seven.
The activities of Flynn and this branch of British Intelligence take place during the Second World War.
According to a very informative blurb with the first recorded adventure:
"Department Seven had been raised the previous year after the British Prime Minister - Winston Churchill - ordered the establishment of an ultra secret branch of the existing intelligence apparatus to take the fight to the enemy with such ferocity it would shake them to their very core.
"Department Seven's brief was simple - to assemble a team of men who were capable of carrying out extreme acts of violence under the most challenging of circumstances. In Churchill's own words 'Dangerous operations are best undertaken by dangerous men so I want cut-throats and brigands of the most bloodthirsty kind who will strike at the black heart of the beast, butchering the Nazis and their allies wherever they rear their ugly heads with no thought for compassion or quarter.'
"Operating far beyond the normal remit of secret operations, Department Seven soon established its reputation as an instrument of death - with assassination and sabotage as its watchwords - to be called upon when only the most extreme of measures were required."
Department Seven considered Harry Flynn to be their very best agent. That same blurb let us know a good deal about Flynn:
"Harry Flynn is an ex Foreign Legionnaire, British Army Commando, safe cracker, cat burglar, renowned knife and fist fighter, one time French organised crime syndicate member, adventurer, serial womaniser and all round scoundrel. Ruthless and determined in equal measure this most unlikely of recruits to the clandestine war against the Nazis soon proved himself to be the most lethal weapon in the armoury of the wartime British secret services.
"Flynn's hard won reputation means that he is always given the toughest assignments..."