Transformers: Beast Machines
The Maximals awaken on their home planet of Cybertron and are chased by mindless Vehicons created by Megatron. The Maximals must free the planet from Megatron and restore it to its real way of living.
The Reformatting
The Maximals awaken on their home world of Cybertron, with no memory of how they got there. Unable to Transform, they are hunted down by mindless vehicle Transformer drones.
Master of the House
The Maximals learn how to transform and gain access to the Council Citadel. There, they learn that Megatron has taken over the planet and intends to wipe out all organic life.
Fires of the Past
While searching for clues to their missing memories, Blackarachnia and Rattrap encounter Jetstorm, Thrust and Tankor – three deadly new Vehicon Generals created by Megatron.
Mercenary Pursuits
As the Vehicon Generals continue to hunt the Maximals, Rattrap discovers a counter-virus that helps him Transform – but once he starts, he can't stop.
Forbidden Fruit
The Maximals discover a new Beast Mode Maximal – a bat named Nightscream – and a mysterious fruit tree, neither of which should exist on the machine world of Cybertron.
The Weak Component
Rattrap finally learns how to Transform, only to discover his Robot Mode has no weapons. With nowhere else to turn for protection, he strikes a deal with Megatron.
Revelations Part 1: Discovery
The Maximals discover a junkyard facility where the robot shells of the missing Transformers are stored. Meanwhile, Blackarachnia is utterly convinced that Thrust's spark is Silverbolt's.
Revelations Part 2: Descent
Cheetor leads a dangerous mission to try to bring out Tankor's old Maximal personality. In doing so, Rattrap discovers a major clue to the Maximal's missing memories and discovers that Tankor has Rhinox's spark. Jetstorm removes Blackarachnia's spark.
Revelations Part 3: Apocalypse
Nightscream fights to retrieve Blackarachnia's stolen Spark. Meanwhile, Optimus is able to contact Rhinox's Spark, but Rhinox deals him a major surprise.
Survivor
Megatron sends his Generals and Diagnostic Drone into the catacombs to kidnap Nightscream and learn the secret behind his Beast Mode. Nightscream is forced to relive a painful memory from his past.
The Key
Tankor uncovers an ancient weapon with the power to turn organic material into cybernetic metal. Nightscream gets hit by the weapon and the Maximals race against time to save him from going off-line.
The Catalyst
Rattrap uncovers a catalyst program that speeds up the growth of Cybertron's newfound plant life. Meanwhile, Blackarachnia discovers that Thrust's spark is actually Waspinator's and that Jetstorm's spark is Silverbolt's.
End of the Line
Megatron prepares a doomsday weapon that can wipe out everything organic on Cybertron – including the Maximals. Meanwhile, Optimus discovers his own doomsday weapon...
Fallout
Optimus destroys Cybertron and realises that the oracle sent them to Earth to bring back organic life, for there to be a balance between technology and organic.
Savage Noble
While trying to recruit the Vehicons, the Maximals discover themselves being stalked by an all-new threat.
Prometheus Unbound
The Maximals attempt to infiltrate Megatron's former fortress, only to have their mission threatened by their supposed new ally!
In Darkest Knight
Blackarachnia finally revives Silverbolt, although he is not happy with his new form.
A Wolf in the Fold
The Maximals are infected with a virus that turns them against each other. Optimus has second thoughts about his plan for harmony.
Home Soil
A seemingly empty spaceship crashes onto Cybertron. When Optimus re-formats the transformer she joins the Maximals. Her name is Botanica.
Sparkwar Part 1: The Strike
Megatron unleashes a new set of generals – who are not exactly as they appear!
Sparkwar Part 2: The Search
Desperate to thwart Megatron, the Maximals search for the missing Sparks.
Sparkwar Part 3: The Siege
Having discovered the location of the missing Sparks, the Maximals race against time to stop Megatron from achieving his ultimate Ascension.
Spark of Darkness
After Megatron's death, something horrible has been happening on Cybertron.
Endgame Part 1: The Downward Spiral
Banding together inside Megatron's floating fortress, the Maximals must protect the Sparks from the depraved tyrant.
Endgame Part 2: When Legends Fall
Horribly outnumbered, the Maximals make their final stand in a desperate attempt to protect the sparks.
Endgame Part 3: Seeds of the Future
With the others Maximal's sparks taken by Megatron and now having the body of Optimus Primal's “Optimal Optimus” from the third season of Beast Wars, Optimus has to face Megatron alone.
