Sylvester Asimov, a genetically modified human known as the God of War, is given a mission on Earth before his scheduled departure for Mars. In Russia, a monstrous figure is wreaking havoc among criminal organizations, and the U-NASA organization calls on Asimov and his team to eliminate the threat. This target is a human who has undergone the Mosaic Organ Operation, the same procedure that grants Asimov and his comrades the ability to merge with animal genes and transform into powerful hybrids. As Asimov pursues the rampaging enemy, he discovers that the mission forces him into a confrontation with an old war companion who is driven by vengeance. The story explores Asimov's past and the personal battles he fights before ever setting foot on Mars, revealing events that were not depicted in the main Terra Formars narrative. Key supporting figures include Alexander Asimov, Ivan Perepelkin, and Elena Perepelkina, who assist in the hunt across a gritty Earth setting.