Koko and her group go to the border of Russia to make an easy delivery, but end up marching right into a covert war for a pipeline. Koko is eager to leave, but her client is desperate for more weaponry and will do anything to get it…

The assassin group Orchestra is out to earn a little cash and Koko just so happens to be visiting the same town as them. Now Koko must run for her life or die by the hands of a quirky team who claim their gunfights are musical.

The showdown between Koko’s men and Orchestra comes to a end that leaves a bad taste in the mouths of everyone involved. To make matters worse, the gunfight draws the attention of the US CIA agent, Scarecrow. So much for a nice day off.

Koko’s older brother, Kasper, pays her a visit aboard her ship. Jonah harbors ill feelings toward Kasper dating back to when they first met. Seeing the man revives some of Jonah’s darker memories that still seem to haunt the boy soldier.

Complications begin to arise as soon as Koko reaches Africa. Dr. Miami has prioritized butterfly hunting over her appointment with Koko. Now Koko’s men must hunt her down in a snowy mountain. Meanwhile, a dangerous arms dealer asks Koko out to dinner…

Mr. Chen invites Koko out to eat while most of her unit is searching for Dr. Miami in the mountains. He has no intention of letting Koko leave that restaurant alive. Now she must escape without her highly skilled team there to help her.

Koko must compete against the former actress and current arms dealer Amalia Torohovsky over who may sell some unmanned aerial vehicles to a country on the brink of war. It looks like Amalia’s years of experience may be a match for the clever young Koko!

After a fun trip to the beach, Koko and her unit get back to business. On top of her usual wares, Koko must also safely deliver a group of doctors to a country in civil unrest.

Baldrag has kidnapped the chief doctor of the group of physicians Koko was supposed to transport. Before she can flee to safety, Koko must first rescue the doctor and fulfill her contractual obligations.

Valmet has run off to Africa to seek vengeance upon the man who killed her squad back in her army days. Meanwhile, Koko is being targeted by another skilled group of assassins.

Valmet fully intends to avenge her long deceased comrades on her own, but Jonah has other plans. Elsewhere, Koko learns a surprising secret from the group of assassins who were after her head.