- Season 1
There have been power outages occurring recently within Paradigm City. Casseey Jenkins, a representative of Power Management, hires Roger to go to Electric City and negotiate with the locals the reactivation of the hydroelectric power plant. The reason for their hindrance is because of their belief that a god who lives in the lake would destroy the city in anger. Roger finds himself in the cabin of an old man who despises those who work for the city, though the old man grows to appreciate his kind services. Roger finds a secret basement under the cabin, finding out that the old man is a retired genetic researcher. The turbines of the dam mysteriously turn on, and Rogers finds out that Casseey, exposing herself as Angel, is responsible for this, after going to the power plant himself. As the underground pipes overflow, a creature, known as the Eel, appears from the lake, absorbing the electricity from the dam. Angel tries to escape by car, but the creature causes it to stall. Roger, summoning Big O, goes into battle against the Eel, but it does not go well for him. It is until the old man shuts down the entire dam that Roger is able to kill the Eel. Roger later destroys the power plant to prevent future reactivation, while keeping in mind that the old man was the one who had created the Eel.
- Megadeus: Big O, Eel
- The eel is seen again in "Hydra".
- The Japanese title is sometimes pronounced "Electricity".
- This is the first episode that shows the social differences in Paradigm City based on living conditions. Roger comments on the difference between those who live inside and outside the domes.