Sent out by Seventeen with the aide of Forty-Two's gadgets and a cover provided by Miss Monet, Agent 07 starts investigating what begins as a simple diamond smuggling operation. But this little operation actually leads up to something much larger and more sinister, and Secret Service Agent 07 finds himself right in the middle of it. Betrayed by CIA agent Ruth Less and unsure of wealthy investor Roger Moorington, Krieg allies with WaveCorp designer Katrina Torri and old companion Miss Pennypacker to try and get to the bottom of this mysterious operation that goes by the name "Black Abyss." But he must be constantly on the lookout for Andrew Ernhert who guards the secrets of the plan.
—Martin Groff