Invincible Series Review (Season 4)

Released: 18th March to April 22nd 2026

Number of Episode: 8

Certificate: 18

Where To Watch: Amazon Prime

Created by: Robert Kirkman

Starring: Steven Yeun, Sandra Oh, J.K Simmons, Gillian Jacobs, Walton Goggins, Jeffery Dean Morgan, Khary Payton, Zachary Quinto and Lee Pace

Over the last five years, Robert Kirkman’s Invincible has been on a knock-out run, standing at the top of the adult-oriented superhero scene. The fourth season has arrived sooner than expected, just one year after its predecessor. It delivers another impressive and wildly enjoyable outing.

Shortly after the defeat of Conquest, Mark Grayson (Steven Yeun), his lover Eve (Gillian Jacobs) and their fellow super-humans struggle on in their efforts to protect Earth from a near endless tide of attacks. The lines of morality are tested and his relationships with others go to more emotional places. Eventually he teams up with his reformed father Nolan (J.K. Simmons) and his partner Allen (Seth Rogen) to tackle the greater threat. The first four episodes feature a barrage of tense action sequences; battles with a mutant dinosaur, mind-controlling squids and underhanded crime bosses set the tone effortlessly. For the final half of the season, our heroes take an extended trip to outer space and come face-to-face with the strongest foe of all. It’s well paced with plenty of room for both light humour and serious moments along the way. There is one downside which comes in episode 4. The return of Damien Darkblood (Clancy Brown), long absent from the last two seasons, is short-changed with a single story that doesn’t contribute much to the bigger picture. The action is strong and the animation detailed, but it sticks out from the rest of the season when it comes to plot.

With a ton of physical and mental stress, the characters and their personal drama are always at the forefront. The central theme this time around is choice; Mark reflects on the decisions he has made in the lead-up to even dicier situations. Eve struggles to reveal a major development to her boyfriend and Nolan must face up to all the suffering he has caused, not to mention a long absence from his family. The main cast are all brilliant with a ton of memorable moments, but it’s Sandra Oh who delivers the finest performance. A long-awaited reunion brings out Debbie Grayson’s raw emotions and the way she grapples with anger and grief is perfectly presented. Mark’s half-brother Oliver (Christian Convery) receives more time in the spotlight and the villains are certainly the best they’ve ever been. We get several flashbacks that reveal more of Nolan’s upbringing. Last, but not least, Lee Pace introduces us to Emperor Thragg, grand regent of the Viltrumites and the worst nightmare of every character who doesn’t bend the knee to him. It’s a thunderous debut that will be thoroughly developed in future seasons.

Season 3 already upped the ante when it came to the action and the latest set does the same with locations and scale. We get a larger share of celestial backdrops and far-off planets, drastically growing the world and introducing a wide range of aliens who are all gearing up to take on the Viltrum Empire. In the latter half of the season, this is matched by fierce battles that take place both on and off-world. The violence is very high with one sequence standing out as one of the most gruesome climaxes I’ve seen in a long time. The animation rises to the occasion at every turn and the music is still an excellent fit for every big set piece.

The fourth chapter of Invincible massively expands and raises the stakes. While one trek into the bowels of the Earth results in a throwaway episode, everything else remains on top form. It really does feel like we’re building towards a gargantuan confrontation and the choices the characters have to make grow ever more desperate. The show remains a must-watch for any fan of superheroes.

Rating: 4.5/5 Stars (Brilliant)