The year is 2087, and humanity is about to lose its position as the dominant life form on planet Earth. An endless swarm of biomechanical beings known as the Venomoids descend from space. Earth's Space Knights are no match for the Venemoid champions, the Teknomen. When the young pilots Ringo Richards and Star Summers find a wounded stranger named Blade, humanity gains one last hope. Blade is able to transform into a Teknoman, but he has no memories and fights to protect Earth. His opponents are not only the endless alien menace, but also the other Teknomen -- who were once human, and his family and friends.