Transformers: EarthSpark season 3 recap: Everything to know before season 4 airs

Season 3 of Transformers: EarthSpark takes the story into its most intense, emotional, and mythology-heavy stretch yet. Building on the fallout left by the shattered Emberstone and the rise of rogue factions, the new season deepens the Maltos’ connection to the Autobots, explores the Terrans’ evolving identity, and reveals the long-awaited arrival of the Quintessons. 

The season picks up immediately after the events of Season 2, plunging the Maltos into new dangers. With eight tightly written episodes and a finale released in two parts, Transformers: EarthSpark Season 3 pushes every character to a breaking point, raising the stakes for Earth, Cybertron’s legacy, and the power hidden within Robby and Mo’s cybersleeves. 

A Season fueled by secrets, chaos lightning, and a rising threat

Season 3 of Transformers: EarthSpark begins with the episode, titled The Need for Read, which follows Bumblebee’s attempt to free Breakdown from the dome holding the trapped Decepticons. At the same time, Mo and Thrash attempt to sneak into the dome to retrieve a missing comic issue for Robby. The mission becomes increasingly dangerous when Breakdown leaks crucial information to Shockwave’s forces, resulting in a chaotic race where Bumblebee must compete for both the comic and the Maltos’ safe escape. The opening establishes the season’s core tension: loyalty, betrayal, and the consequences of trying to protect everyone at once.

In the second episode, titled Attack of the Drive-In Movie, the series shifts into a blend of comedy and unexpected danger. Robby’s date with Izzy becomes a full-family movie night, but Nightshade’s enhanced projector accidentally brings the film’s monsters to life. Robby and Izzy are sucked into a creature-filled movie universe, turning what was supposed to be a simple hangout into a fight for survival. The episode also continues to develop Izzy’s growing importance, planting seeds for her later reveal.

The third episode, titled The Great Escape, marks the return of Fairmaestro, whose new escape room is far more dangerous than it seems. The Maltos become trapped inside a series of magically enhanced carnival challenges designed for failure. Twitch eventually breaks the cycle by destroying their golden tickets, freeing her family and exposing Fairmaestro’s inflated confidence. The episode reinforces the idea that old enemies are becoming more dangerous as larger forces begin to move behind the scenes.

The fourth episode expands the season’s mythology by introducing Prowl, discovered inside a crashed Autobot ship located within the Decepticon dome. His arrogance and prejudice toward humans and Terrans creates tension within the group, though he eventually gains respect after helping protect a critical Cybertronian artifact. However, the Decepticons steal Prowl’s ship, leaving the Autobots stranded once again. This setback quietly hints at the Quintessons’ involvement and the looming threat approaching Earth.

The fifth episode, titled Fire and Ice, delivers one of the season’s most dramatic turns. Bumblebee returns infected with the Hate Plague, an extraterrestrial virus that drives its victims into uncontrollable rage. Within minutes, the Autobots fall into violent conflict, forcing Twitch to take the lead after finding herself isolated at the North Pole. The Maltos ultimately cure the infected Transformers using freezing liquid coolant, but not before the plague amplifies deep-rooted anger among some of the Autobots. This episode foreshadows a larger force manipulating events from the shadows.

The penultimate episode before the two-part finale, titled The Truth Is Out There, is the emotional turning point of the season. As Robby, Thrash, and Prowl investigate the origins of the Hate Plague, they find evidence that leads them to Izzy, who is revealed to be a Quintesson shapeshifter. Her betrayal devastates Robby and reshapes the season’s narrative. Izzy admits she infected Bumblebee and infiltrated the Maltos as part of her mission, but then warns them that this is only the beginning. Her ominous message confirms that the Quintessons are preparing to make their move.

Recap of Transformers: EarthSpark Season 3 Episode 7 & 8: Judgment Day brings the Quintessons’ full wrath to Earth

The finale of Transformers: EarthSpark season 3, titled Judgement Day, unfolds across two episodes and brings the Quintessons directly to Earth. Their leader arrives seeking the power of Quintus Prime embedded in Robby and Mo’s cybersleeves. The Quintessons show no hesitation in attacking children, dropping the siblings into a pit of Sharkticons and preparing to extract the Prime’s power, even if it means killing them. 

Meanwhile, the revived Chaos Terrans reluctantly join the Maltos and Autobots after realizing the Quintessons’ victory would doom them as well. Terratronus is awakened to face the invaders but struggles against the overwhelming Quintesson forces. Only when the Maltos, Autobots, Terrans, and Chaos Terrans combine their power does she regain the strength needed to stand her ground. The battle ends with the Quintessons defeated, Izzy imprisoned, and Earth temporarily safe. 

Transformers: EarthSpark returns for the fourth and final season on December 5, 2025.