Kremzeek!

A tiny living surge of electricity wreaks havoc by leaping between machines and Transformers alike.

At Decepticon Headquarters, Megatron is working on some electrodes for the Decepticons' new energy magnet. When Starscream comes to complain that it's taking too long, an energy-based lifeform which calls itself Kremzeek jumps from Megatron's experiments and begins wrecking all their gear. Megatron is impressed, thinking that Kremzeek will make an effective weapon against the Autobots. Temporarily containing it in a circuit trap, Megatron has Thrust take them to the Autobot base, where they deposit Kremzeek.

Optimus Prime is bewildered to see the sparking box on the security monitor. The box soon breaks open, releasing Kremzeek, who goes on a rampage, shorting out Jazz and Hoist. Sparkplug tries unsuccessfully to catch the critter in his hands, only to get zapped. While Kremzeek continues to wreak havoc, Sparkplug fetches an insulating compound and coats Optimus with it. The compound proves to make the Autobot immune to Kremzeek's attacks, and they quickly coat Blaster, Inferno, and Bumblebee as well. Unfortunately they realize too late that Teletraan I is still vulnerable, and watch as Kremzeek enters the computer, causing it to broadcast strange warnings to the rest of the world. Finally Teletraan I shorts out, and Kremzeek rides Sky Spy's transmissions to another location... Japan.

Meanwhile, the Decepticons have detected the success of their plan, and Megatron decides it's time to deploy the energy magnet.

The remaining active Autobots take Omega Supreme to Japan, but the massive mechanoid is shorted out on arrival by Kremzeek, crashing on the beach. Kremzeek then jumps onto a train, which Optimus chases along the tracks in his truck mode. Eventually the train reaches the city, Tokyo, and stops, unleashing Kremzeek on an unsuspecting population. He wreaks havoc in an arcade, then enters Shibuya Manufacturing Corporation. Within the company's factory area, the Autobots meet Dr. Sōji Yoshikawa, who theorizes that radio waves might affect the creature. Blaster works his magic, but Kremzeek marches straight through the radio waves and enters the Autobot. Blaster tries to fry Kremzeek with his own energy supply, but Yoshikawa's warning that this isn't a good idea comes too late, and a veritable plethora of Kremzeeks begin shooting out of Blaster's chest.

As they rampage around Tokyo, the Autobot leader theorizes that a large energy source could draw the Kremzeeks together and reunite them. At the Decepticon base, the energy magnet is ready, and the Decepticons first target a passing warship. Back in Japan, the Autobots have finished preparing a tower to absorb the Kremzeeks, but one manages to slip inside Blaster. When the remaining Kremzeeks are reunited, they merge in a massive form and begin a new rampage through the city. Inferno unsuccessfully tries his fire-retardant foam on the beast, which simply flings it back at the Autobots.

Megatron activates the energy magnet, drawing the world's energy sources to the Decepticon base. As the Autobots begin to feel the effects of the loss of energy, Prime realizes that this whole thing has been a distraction by Megatron. That leads Blaster to think of a plan: Why not let the Decepticons deal with Kremzeek? They lure Kremzeek, who is getting sleepy from the energy drain, to a radio tower, causing him to be beamed to the energy magnet, destroying it as the Decepticons flee. Its destruction ceases the energy drain and the city has power again.

The Autobots take a boat out to the energy magnet, where Yoshikawa theorizes that they could disperse Kremzeek's energy, which would kill him. Despite Bumblebee's objections that killing him is wrong, Prime causes Kremzeek to disperse. Returning to the mainland, Blaster admits that he sort of misses Kremzeek... at which point the solitary Kremzeek that jumped into him earlier jumps out, and the pursuit begins again. Sadly (or thankfully), there's no time to see what happens next.

—Megatron displaying how desperate he was getting by that point.

—Optimus Prime and Sparkplug Witwicky

—Teletraan I's funniest lines in the series confuse a radioman.

—Dr. Sōji Yoshikawa and Optimus Prime, the former of whom is as dubious of the episode's plot as the target audience.

—Blaster and Optimus Prime