008 is the code-name of an unnamed fictional intelligence operative of the 'Double-O' ('00') Branch, an ultra-covert Black Ops unit within the British Secret Intelligence Service (SIS/MI6). The character appeared in the 2015-2016 James Bond comic VARGR. To date, across the James Bond franchise as a whole, there have been four individuals who have held the number 008.
MI6 sends an unnamed agent 008 into Helsinki, Finland for an unknown mission. He was never able to complete it because he was murdered by a serial killer that was completely unrelated to the mission, but killed 008 simply for the love of killing. 007 was then sent to Helsinki to avenge him. After tracking 008's murderer down and torturing him with a shovel, 007 completed his mission of revenge.
The day that 007 returned to MI6 headquarters Bill Tanner, the MI6 Chief of Staff began the search for 008's successor while 007 took over his open cases. One of them involved the import of lethal, flesh eating narcotics being imported to England. 007 was able to neutralize the threat.