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Megatron has been defeated, but strange creatures keep attacking the Maximals all over Cybertropolis.

Spark of Darkness (Japanese title: The Terrifying Red Sphere) (恐怖の赤い玉 Kyōfu no Akai Tama) is the tenth episode of second season of Beast Machines: Transformers, is the twenty-third episode of the Beast Machines: Transformers series and is overall the seventy-fifth episode of the Beast Era of the Transformers series. It is overall the one hundredth-seventy-third episode of the G1 Era of Transformers.
It is the last regular episode of both the Beast Machines: Transformers series, the final regular episode of the Beast Era and the last regular episode of the G1 Era of the Transformers series overall before the three-part "Endgame" series finale saga.


The Maximals celebrate the defeat of Megatron inside the now-dormant Grand Mal. But while most of the group high-five each other, Nightscream mourns the loss of his pet/best friend, Savage/Noble. Silverbolt wonders if Megatron is truly defeated, but Primal assures his team that he knows Megatron is dead, thanks to their mutual connection to the Oracle. When Cheetor mentions there's still business to be taken care of, Botanica responds she feels there's another evil on Cybertron.

Cheetor and Nightscream are sent to find the Vehicon generals. Silverbolt and Blackarachnia are sent to assess the dormant Transformer bodies to start the process of getting the sparks Megatron kidnapped to function again. Rattrap and Botanica are assigned to attend the techno-organic orchard. Rattrap, of course, whines about this. Optimus stays in the Grand Mal.

Blackarachnia tries to put the moves on Silverbolt, but without confirmation that Megatron is truly really dead, he's extremely hesitant to respond to her advances. She's so focused on trying to force open Silverbolt's heart, only he notices the large, lumbering chimera-like monster emerge behind her. The two Maximals run away (cowardly) from the giant, but when the monster hits Silverbolt with gunfire, Blackarachnia fights back with her electric sting. The monster knocks her over, but Silverbolt has had time to recover and attacks the monster with his throwing blades. Eventually, Blackarachnia has the idea to attack the monster using an explosive component from one of the nearby Transformer bodies. The behemoth steps out of the explosion, and the two Transformers watch a strange red spark emerge from the monster as it falls over in defeat. The red glow races away.

In the orchard, while Botanica works, Rattrap scavenges parts of a Motorcycle Drone to see if anything can be made into a useful tool. As he does this, he moans that he feels his talents are being wasted and he'll be stuck with embarrassing stories to tell his grandkids. Botanica argues that tending the garden is important. The debate between the two heats up, and in their rage, the two Maximals accidentally touch lips. The two quickly agree to completely disregard, forget, and ignore their contact and get to work. But suddenly, the deactivated Cycle Drone comes to life and begins to blast the orchard. Botanica, upset about the carnage, transforms and uses her bolts to bring heavy wreckage crashing down upon the possessed drone. The drone flails its body one last time before falling over, no longer inhabited by the glowing red spark.

Cheetor and Nightscream meet with Strika and Obsidian and invite the two generals to join the Maximals. As the two generals debate, Thrust stops by to make it clear that he has no interest in joining with the Maximals and that he believes that Megatron, "The Big M," will soon return. After Thrust leaves, the remaining four are attacked by a damaged but resilient Aero Drone. Nightscream sucks the energy from the drone, but the monster still tries to pull Cheetor over the edge of a nearby cliff. Cheetor is saved by Nightscream and the drone falls, but before it makes impact with the water below, the glowing red spark leaves the body.

The group returns to meet with the other Maximals (sans Botanica) inside the Grand Mal, and Optimus welcomes Strika and Obsidian to the team. The two new recruits leave to fortify the base—just in time for Rattrap to detect the haunting red spark heading right towards them all. Inside, the spark passes by the two generals and briefly encounters Cheetor and Blackarachnia. Next, the spark uses a Tank Drone body to attack Optimus and Botanica. While Rattrap tracks the movement of the Spark, he deduces a way to neutralize its rampage.

Rattrap uses a Spark Extractor on the Tank Drone to draw out the spark. Once the red spark is contained, he "re-polarizes" his captive, but the Spark Extractor flies alive, trying to break free of Rattrap's grip. After escaping the spark extractor, the spark flies into a Diagnostic Drone and, finally coherent, exclaims "I live!" But Rattrap has the next laugh: The spark, who is clearly Megatron, is now trapped inside of the diminutive body.

The Maximals meet Megatron, but he laughs at them. Even in his tiny form, he's able to reactivate the Grand Mal's internal defenses to evict the Maximals. As the Maximals struggle against the tentacles that have begun to bind them, Primal has an Oracle moment, but the Maximals are all captured anyway. Megatron starts to reformat Primal's spark, but Rattrap gets Botanica to destroy the control panel, freeing the team from Megatron's grip.

Obsidian arrives at the fight scene and is forced to choose: Be loyal to Primal's or Megatron's side. The two generals grab Megatron and fall out of sight. Out of immediate danger, Optimus explains that Nightscream didn't kill Megatron, but only turned Megatron into the monster that he was but no longer is.

Away from the battle, Strika, Obsidian and Megatron meet up with Thrust. No longer in control of the Sparks, Megatron declares, "The time for action is now."


"What would you rather be doing, sticking your tail into a computer circuit?"
"Heh, beats the heck outta plowing your little field of dreams."

—"Innuendo 101" with Botanica and Rattrap

"You shall not pass!"
[Red spark passes without pause]

Strika makes a very poor Gandalf.

"I live! I live! I—what kind of puny body is this?!"

Megatron discovers he's in a diagnostic drone. That's karma.

Featured Characters[]

(Numbers indicate order of appearance.)

Maximals Vehicons


  • While "Spark of Darkness" is not the last episode of Beast Machines: Transformers, it is the both the final stand-alone episode and the last episode of the Beast Machines: Transformers series to have a plot-of-the-day structor, as the last three episodes serves as one conquering story as well as have Major-Plot elements.
  • This episode marks the development of a romance between Rattrap and Botanica.
  • It is revealed that Megatron was not killed in the previous episode, rather his Spark was depolarized, giving it properties similar to the immortal spark of Starscream.
    • The ability to survive without support.
    • The ability to possess and control others.
      • Though Megatron mostly controlled sparkless bodies, whereas Starscream seemed to be able to control just about anyone, so long as the were reasonably lacking in willpower or intelligence.
      • Megatron also seemed to lack coherence in this form, or at least the ability to speak.
  • Megatron's Spark is subsequently repolarized, and trapped within one of his Diagnostic Drones.

Transformers references[]

  • The short story "Singularity Ablyss" by Bob Skir, published in the Transformers Legends anthology, is set between-the-scenes of this episode. It doesn't change the events of the episode, but it does illuminate what Megatron may have been thinking in the midst of all that body-jumping; also, he kills Rhinox.
  • Precisely 5 minutes and 3 seconds into the episode, immediately after Blackarachnia says, "Whoever you are, THAT was a big mistake!" to the shell, one can see the severed head of Depth Charge lying right by her feet. How it even ended up on Cybertron is a mystery.
  • Even later on in the episode, when Silverbolt trips over battling the mutant, Blackarachnia proceeds to rip out the power core from what appears to be Ratchet's body.
  • Rattrap and Botanica arguing with each other continues the trend of Rattrap and another Maximal duking it out verbally. This would probably be the first instance where it blossoms into romance, though. As Megatron would say, yuck.

Real-world references[]

  • When Cheetor asks Thrust what he's rebelling against now that Megatron is gone, Thrust replies "What've you got?", the reply given by James Dean's character in Rebel Without a Cause. Fitting.
  • The sequence where Optimus Primal and Botanica are first ambushed is also a visual quote from the original Alien.
  • When Optimus watches his team get attacked by the spark extractors, the slow motion effect is very reminiscent of Saving Private Ryan.