Invincible Season 4 Episode 4 Just Set the Series’ Worst Record — Here’s What Went Wrong

Invincible Season 4 finally swung for the fences with Episode 4... and whiffed with fans. The ending tees up bigger, juicier stuff, but the hour itself just broke a record the show did not want to touch.

Spoilers for Invincible Season 4, Episode 4 ahead.

Where we are, and why this one is getting dragged

Season 4 came out of the gate focusing on Mark's headspace and assorted villains while quietly setting the table for the looming Viltrum Empire conflict. Nolan is back in the mix, the war drums are lightly thumping, and the first three episodes landed well with viewers: all above 8 stars on IMDb. Then came Episode 4, 'Hurm,' which dips hard to a 6.9 on IMDb — a new low for the Prime Video series. No other episode of Invincible has ever fallen under 7.

What actually happens in 'Hurm'

Mark gets yanked into the Under Realm — basically Invincible's take on Hell — by gumshoe-from-the-abyss Damien Darkblood. That does pay off the Season 3 post-credits tease (yes, the one from a year ago). The problem is what follows mostly feels like an off-ramp from both the core Season 4 story and the source material. It 's a show-invented detour, and it sits in the middle of a season when most people are itching for Viltrumite business.

So why did fans rate it so low?

• It is a mid-season, TV-original side quest that is not from the comics, and the timing is awkward. Season 3 teased Mark's trip to Hell a year ago, Season 4 started by focusing on Mark's trauma and the space storyline instead, and now we pop into the Under Realm right when viewers want Viltrum updates. It feels like a stall.
• On IMDb and Reddit, a lot of folks are calling it filler — the kind that doesn't add enough to justify the pause on the main arc.
• The foes of the week, Satan and Volcanikka, don't land as compelling threats.
• Some are unhappy with the animation and overall production polish this episode.

The silver lining (and the lesson)

The episode ends on a cliffhanger that clearly points back to the bigger story, and Nolan stepping in to try to recruit Mark should shake off the malaise. I'm not convinced this is some downward spiral for the season — more like a speed bump. But the reaction seems pretty clear: maybe ease up on the campy, show-invented digressions when the audience is laser-focused on the Viltrumite war path.