Events unfold in the near future, in 2071 on Mars and tell about a group of bounty hunters. In anticipation of All Saints Day, a large-scale catastrophe occurs: a truck with a dangerous virus tank exploded on one of the highways, which led to a terrifying environmental disaster. A deadly virus appeared on the streets of the city, and this leads to real panic among the inhabitants of the colony.
Police believe that this was a planned terrorist attack using biological weapons. The Martian government announced a very large reward for the capture of the criminals behind this attack. Without thinking twice, bounty hunters Spike Spiegel and Jet Black, along with a team of assistants, begin to search for terrorists, because they are used to flying around the Universe on their ship 'Bebop' in search of criminals.