Generator Rex backdrop
Animation•Action & Adventure•Kids

The Best Episodes of Generator Rex

Every episode of Generator Rex ranked from best to worst. Let's dive into the Best Episodes of Generator Rex!

Binge this in 22h 32m•Peaking at 9.6/10

Generator Rex, an average teenager with the ability to turn his body into amazing machines, helps the secret organization Providence save the world from the nanite threat and dangerous EVO monsters.

Airs on
Cartoon Network
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons3

All123

Episode Rankings

  1. #1 Fan Favorite
    Click to reveal
    Generator Rex Season 2 Episode 19 - Lions and Lambs
    9.6/10(3867 votes)

    #1 - Lions and Lambs

    S2:E19

    Van Kleiss attach's a device to Breach which makes her more dangerous. Rex attempts to get her to switch sides.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  2. Generator Rex Season 1 Episode 19 - Promises, Promises
    9.5/10(2456 votes)

    #2 - Promises, Promises

    S1:E19

    Rex's birthday and a flashback to how he joined Providence.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  3. Generator Rex Season 3 Episode 10 - Assault on Abysus
    9.5/10(2500 votes)

    #3 - Assault on Abysus

    S3:E10

    Rex and Circe go to Abysus to get a Metananite before Providence can obtain it.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  4. Generator Rex Season 3 Episode 12 - A Brief History of Time
    9.4/10(2613 votes)

    #4 - A Brief History of Time

    S3:E12

    Van Kleiss ended up in the past and is being pursued. He struggles to find a way back to his own time.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  5. Generator Rex Season 3 Episode 18 - Endgame (1)
    9.4/10(2196 votes)

    #5 - Endgame (1)

    S3:E18

    Providence makes its move against Rex and company to get all the Metananites.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  6. Generator Rex Season 1 Episode 8 - Breach
    9.3/10(2813 votes)

    #6 - Breach

    S1:E8

    Rex vanishes, and Breach is the only person who knows where he is. As Rex explores his surroundings, Holiday tries to figure out where Breach has him hidden.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

    7. Trending NowTRENDING NOW

    The 20 WORST Episodes of Generator Rex

    READ
  7. Generator Rex Season 2 Episode 15 - A Family Holiday
    9.3/10(2470 votes)

    #7 - A Family Holiday

    S2:E15

    A researcher claims to have a cure for incurable Evos. Holiday leaves Providence in an effort to save her sister, but Six is suspicious of this miracle cure.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  8. Generator Rex Season 3 Episode 8 - Black and White
    9.3/10(1488 votes)

    #8 - Black and White

    S3:E8

    White Knight and his team break into Providence to keep Providence from restarting the Nanite Project that caused the Event. Secrets are revealed, and White Knight tells the team what is at stake.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  9. Generator Rex Season 2 Episode 6 - Divide by Six
    9.2/10(1964 votes)

    #9 - Divide by Six

    S2:E6

    Six, and some of his old associates, take Rex to a secluded island. Six hopes Rex can cure his mentor, while his former comrades have a different solution in mind.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  10. Generator Rex Season 2 Episode 12 - Written in Sand
    9.2/10(1446 votes)

    #10 - Written in Sand

    S2:E12

    Trapped in cave, Rex and Van Kleiss form an uneasy alliance to find the source of a storm that's destroying nanites.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  11. Generator Rex Season 3 Episode 1 - Back in Black
    9.2/10(1492 votes)

    #11 - Back in Black

    S3:E1

    Providence has changed during Rex's time jump. Black Knight is now in charge. Rex does not like the new direction Providence is taking.

    Director:Unknown
    Writer:Paul Giacoppo

    Be the first to start the conversation for this episode

  12. Generator Rex Season 3 Episode 15 - Target: Consortium
    9.2/10(1347 votes)

    #12 - Target: Consortium

    S3:E15

    Jungle Cat returns to assist the team in their efforts to infiltrate Providence as the Consortium reunites for the first time since the Event.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  13. Generator Rex Season 3 Episode 16 - Enemies Mine
    9.2/10(2031 votes)

    #13 - Enemies Mine

    S3:E16

    Some of Rex's enemies escape from prison seeking revenge.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  14. Generator Rex Season 3 Episode 19 - Endgame (2)
    9.2/10(2215 votes)

    #14 - Endgame (2)

    S3:E19

    Rex must risk everything on his ultimate build in the final battle with the Consortium.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  15. Generator Rex Season 1 Episode 18 - Plague
    9.1/10(1413 votes)

    #15 - Plague

    S1:E18

    An Evo plague is spreading. People are falling asleep. Rex and White Knight are the only one left to stop the plague. They must work together to find the source of the plague.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  16. Generator Rex Season 2 Episode 18 - Six Minus Six
    9.1/10(1497 votes)

    #16 - Six Minus Six

    S2:E18

    While trying to recover Rex's memories, Six loses his memories, and reverts to his old personality, and his old life.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  17. Generator Rex Season 1 Episode 6 - Frostbite
    9.0/10(2030 votes)

    #17 - Frostbite

    S1:E6

    Rex absorbs too many nanites requiring an emergency visit to a secret Providence base to store the excess nanites.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  18. Generator Rex Season 1 Episode 21 - Payback
    9.0/10(1504 votes)

    #18 - Payback

    S1:E21

    Van Kleiss steals Rex's nanites which powers up Van Kleiss and Rex powerless. Van Kleiss gains new abilities and attacks Providence. Meanwhile Rex tries to get his power back and finds something in his system.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  19. Generator Rex Season 2 Episode 7 - Mixed Signals
    9.0/10(1922 votes)

    #19 - Mixed Signals

    S2:E7

    In the middle of a battle, Rex suddenly produces new builds. As he's being examined, a mysterious stranger arrives who claims to be Rex's brother - Caesar. He claims to have sent the schematics for the builds.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  20. Generator Rex Season 2 Episode 14 - Hard Target
    9.0/10(1485 votes)

    #20 - Hard Target

    S2:E14

    Breach is targeting the girls of Rex's life: Cricket and Circe! Or is she?

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  21. Generator Rex Season 3 Episode 3 - Heroes United
    9.0/10(2164 votes)

    #21 - Heroes United

    S3:E3

    Ben Tennyson falls through a wormhole and encounters Rex. The two heroes must unite against a foe that can absorb their powers.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  22. Generator Rex Season 1 Episode 9 - Dark Passage
    8.9/10(1390 votes)

    #22 - Dark Passage

    S1:E9

    Rex and company head down to South America to locate a researcher who worked on nanites before the Event. He may also have answers to Rex's past.

    Director:Unknown
    Writer:Adam Beechen

    Be the first to start the conversation for this episode

  23. Generator Rex Season 2 Episode 4 - Alliance
    8.9/10(1322 votes)

    #23 - Alliance

    S2:E4

    With the dome about to fail, Rex and Bobo go to Kiev to repair the shield. Van Kleiss arrives to form an alliance with Noface.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  24. Generator Rex Season 3 Episode 13 - Mind Games
    8.9/10(1460 votes)

    #24 - Mind Games

    S3:E13

    Circe escapes Providence and is rescued by Rex. She joins them in their fight, but not all is as it seems.

    Director:Unknown
    Writer:Paul Giacoppo

    Be the first to start the conversation for this episode

  25. Generator Rex Season 2 Episode 16 - Exposed
    8.8/10(1201 votes)

    #25 - Exposed

    S2:E16

    A news team is given a tour of Providence.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

Best Episodes Summary

"Lions and Lambs" is the best rated episode of "Generator Rex". It scored 9.6/10 based on 3867 votes. Directed by Unknown and written by Unknown, it aired on 11/4/2011. This episode scored 0.1 points higher than the second highest rated, "Promises, Promises".