The Savage Fish
THE SAVAGE FISH Human Food Fish Piranha Dr. I.M. Vicious a famous research scientist, develops a metal eating fish similar to the deadly piranha. He attacks the Navy with them and sinks several destroyers. 8th Man comes in on the scene and when he confronts Vicious he learns that the mad scientist is obsessed with returning mankind to its evolutionary origins--the sea--and will stop at nothing to achieve his goal. 8th Man has his leg eaten up by the pesky fish and escapes before he's totally destroyed. 8th Man engages Dr. Vicious in a battle on the ocean who loses control of his boat and crashes into some rocks, which kills him. Without direction from Dr. Vicious their creator, the fish die off and the world is saved.
EP 52 - The Savage Fish
8 Man
A private investigator working a routine case involving stolen technology is mortally wounded. His only hope for survival comes from sacrificing his humanity to become 8Man -- a powerful cyborg crime-fighter enhanced with a living human brain. Resurrected as the ultimate high-tech vigilante, it is up to 8Man to bring the lawless to justice and put an end to the escalating cycle of violence. A classic animated thriller that will leave you breathless.
(Source: AnimeNfo.com)