The Final Fight is the fifty-first and fifty-second and final episodes and the sixth and final multi-part episode of the animated series, Virus Attack and they were aired in both parts on September 23, 2011.
A Virus attack is under way. Cybil and Valerius are convinced that the new attack is a diversion. They must take advantage of it and attack Khalerya, the base of the Viruses, taking it by surprise!
The Anti-Viruses, helped by Cybil and Valerius, will use up all their forces to recover the Kryptuses held in the base.
- Edward Amaldi