Ben 10 Omniverse Season 5 Episode 3 — "An American Benwolf in London"

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Foggy European streets, underground historical secrets, and ancient lycanthropic curses collide as Ben 10: Omniverse deepens the atmospheric roots of its "Galactic Monsters" story arc. Season 5, Episode 3, "An American Benwolf in London," takes Team Tennyson across the Atlantic to the historic capital of the United Kingdom for a thrilling, gothic investigation that bridges classical folklore with alien biology.

While tracking a mysterious surge in magical and extraterrestrial anomalies in London, Ben and Rook link up with the legendary Forever Knight, Sir Cyrus. They uncover a radical plot orchestrated by the Forever Knights to unearth an ancient, subterranean relic capable of awakening a long-dormant curse. To stop them, Ben must embrace his inner beast and unleash a classic, howling predator before the entire city is overrun by primeval chaos.

“I’ve broken out of alien prisons and fought across dimensions, but trying to navigate these narrow old London streets while tracking a giant, howling werewolf is a whole different level of crazy.”

Episode Summary

The adventure kicks off as Ben and Rook travel to London following a series of unexplained cryptid sightings and sudden structural breakdowns in the city's ancient sewer systems. Their investigation quickly draws the attention of Sir Cyrus and a militant faction of the Forever Knights, who are secretly excavating a forgotten underground chamber. The Knights seek an artifact known as the Eye of Ashika, believing its mythical energy fields can purify the Earth of all alien influence.

However, the artifact's true nature is far more dangerous. Instead of a purifying weapon, it acts as a cosmic signal beacon that triggers a deep biological reaction in certain alien strains. The energy surge awakens a hidden, ancient pack of underground beasts and sets off an environmental destabilization that threatens to cave in major London landmarks from below.

With Rook using his Proto-Tool to stabilize the collapsing underground foundations and hold off the Forever Knights' heavy armor, Ben takes the fight directly to the beasts. The episode delivers an exceptional action showcase as Ben taps into the spooky theme of the season, prominently highlighting the long-awaited return of his Loboan form, Blitzwolfer (originally known as Benwolf), using its powerful sonic howls to counter the underground echolocation of his enemies. Ben also transitions into Spidermonkey to match the agility required for the claustrophobic underground arches, successfully shattering the ancient beacon, sealing the subterranean fault lines, and leaving the Forever Knights to face Plumber custody.

Themes & Character Development

Folklore Meets Sci-Fi: The narrative masterfully dissects historical human myths, re-contextualizing ancient werewolf legends as early encounters with specialized extraterrestrial species.
The Blindness of Fanaticism: Sir Cyrus and his Knights demonstrate how absolute obsession with ideological purity can cause people to accidentally unleash the very monsters they claim to fight.
Embracing the Untamed: Ben shows great psychological growth by mastering the raw, feral instincts of his animalistic forms, turning wild fury into a structured tactical advantage.

Production Details

First Aired: March 1, 2014
Created By: Man of Action (Concept), Derrick J. Wyatt (Art Director)
Written By: David McDermott
Directed By: Dan Riba
Produced By: Cartoon Network Studios
Visual Aesthetics: Features a beautifully moody palette dominated by foggy cobblestone streets, dark brick architecture, and the vibrant, echoing green waves of Blitzwolfer’s sonic attacks.
Voice Cast:
- Yuri Lowenthal as Ben Tennyson / Blitzwolfer
- Bumper Robinson as Rook Blonko
- Robin Atkin Downes as Sir Cyrus
- Dee Bradley Baker as Spidermonkey

Fun Facts & Trivia

Did You Know?

The episode title is a direct, stylized homage to John Landis's legendary 1981 horror-comedy classic film, *An American Werewolf in London*.
This episode serves as a massive milestone for longtime fans, officially renaming Ben's classic Loboan form from the fan-coined "Benwolf" to the sleek, official title Blitzwolfer.
The underground setting contains several hidden visual references to classic Victorian literature, including subtle nods to *Sweeney Todd* and *Jack the Ripper*.
Blitzwolfer's updated Omniverse design features an Omnitrix symbol located on his collar/neck alignment, giving him a distinct, armored appearance compared to the original series.
This marks one of the few instances in the series where Team Tennyson operates entirely within a real-world European metropolitan city outside of America or space.

Legacy & Impact

"An American Benwolf in London" is highly praised by the community as an exceptional, atmosphere-driven entry in the *Galactic Monsters* block. By perfectly blending classic monster cinema aesthetics with fast-paced superhero sci-fi and historical lore, it delivers a deeply satisfying and unique flavor to the season. It stands as a memorable chapter that beautifully proves that whether in Bellwood or across the globe, Ben's heroic instincts remain completely unmatched.