Invincible 403 Review

Invincible 403 Review

Author: Chris Jones, Derek O'Neill and John Harrison. TV Podcast Industries March 24, 2026 Duration: 54:17

Derek and Chris are back to discuss Invincible 403 "I Gotta Get Some Air". The return of Machine Head is always something to celebrate but did an ill thought out post credit ruin the episode for Derek? Find out in our spoiler filled podcast.

Invincible 403 "I Gotta Get Some Air" Synopsis

Created by: Robert Kirkman, Ryan Ottley, Cory Walker

Episode Written by: Ross Stracke 

Directed by: Stephanie Gonzaga

Machine Head informs Titan that Mister Liu survived their attempt on his life and is hunting them. He first sends Magnattack to assassinate Titan but he’s able to get the better of the attacker and kills him. Concerned about Mr. Liu’s attack, Titan tries to get Invincible to help him but he sends Oliver instead. Oliver is overpowered by Mr. Liu in his dragon form. 

Back at the guardians base, a Sequid appears from inside Rex, which Monster Girl destroys, but it raises further questions over whether Mark’s choice to murder Rus Livingston was the correct decision. But as the Flaxans return and attack Earth, prompting Mark to join the Guardians to finally push back the forces his father had defeated before.

During the battle Robot and Monster Girl enter the Flaxan dimension to destroy their technology from the other side, discovering a highly advanced civilization that poses a major threat. But as the rest of the team try to travel through the portal, a fleeing Flaxan destroys it, trapping Robot and Monster Girl in the other dimension. 

When Mark learns that Oliver has been put in danger by Titan he fights Mr. Liu, forcing him to retreat and almost kills Titan until Oliver intervenes. 

With Liu still free, Titan is forced to join Machine Head's Order for his own protection. But as he joins the group he learns Mr. Liu has also returned and both of them will now report to Machine Head. 

Meanwhile with her powers going out of control a concerned Eve finds out she is pregnant.

Invincible Season 4 Cast

  • Steven Yeun as Mark Grayson / Invincible
  • J.K. Simmons as Nolan Grayson / Omni-Man
  • Sandra Oh as Debbie Grayson
  • Gillian Jacobs as Samantha Eve Wilkins / Atom Eve
  • Christian Convery as Oliver
  • Walton Goggins as Cecil Stedman
  • Zachary Quinto as Rudy Conners / Robot
  • Melise Jow as Kate Cha / Dupli-Kate
  • Ross Marquand as The Immortal
  • Ben Schwartz as Russ/Shapesmith
  • Seth Rogen as Allan The Alien
  • Jonathan Banks as Brit
  • Jeffrey Donovan as Machine Head
  • Todd Williams as Titan

How we talk about the episodes

We discuss the story, animation style and some of our favourite moments from the episode.

Feedback for the Invincible Podcast

If you want to chat with us about Invincible you can email us to feedback@tvpodcastindustries.com join us on our Facebook group at facebook.com/groups/tvpodcastindustries or join us on our brand new Discord server at https://discord.gg/DyVtkuuWZP we'd love to see you wherever you want to join us.

Follow us and Subscribe to the Podcast

If you want to keep up with us and all of our podcasts, please subscribe to the podcast over at https://tvpodcastindustries.com. Where we will continue to podcast about multiple TV shows we hope you’ll love.

Next time on The Invincible Podcast

Thanks so much for joining us for the first three episodes of season 4 of Invincible. We'll be back next week for Invincible Season 4 Episode 4 "Hurm". We hope you'll join us once you've watched that episode too.

Until then, Keep Watching, Keep Listening and Keep Being Invincible.

Derek and John

TV Podcast Industries

All images and audio clips are copyright of Prime Video, Skybound, Image Comics and their respective copyright owners.


Join Chris Jones, Derek O'Neill, and John Harrison for a weekly deep dive into the shows everyone is talking about. TV Podcast Industries is your regular hangout for thoughtful, often spirited, conversations about the latest and most significant series across all platforms. Each episode focuses on a specific title, breaking down the storytelling, characters, and that week's big twists or revelations. You'll hear their detailed reviews and discussions on everything from major franchise entries like Marvel's Daredevil Born Again and The Boys to ambitious adaptations such as The Last of Us and The Sandman. They explore the vast landscapes of shows like The Rings of Power and the final frontier in Star Trek: Picard, while also keeping an eye on new arrivals like Alien Earth and Ironheart. The scope isn't limited to live-action; animated series and manga adaptations get their due attention as well, reflecting a genuine passion for the entire medium. This podcast feels like chatting with a few well-informed friends who are just as eager to analyse a brilliant scene as they are to debate a disappointing finale. It's a comprehensive and engaging listen for anyone who finishes an episode and immediately wants to hear a smart conversation about it. Tune in for their insightful, often funny, and always dedicated coverage of the television industry's biggest hits and hidden gems.
Author: Language: English Episodes: 577

TV Podcast Industries
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