Invincible season 4 finale post-credits scenes: how many are there and how do they set up season 5?

As is tradition for superhero storytelling, there is an Invincible season 4 post-credits scene, and it has potentially massive ramifications for season 5 and beyond. So be sure to sit through the, er, 9 seconds of credits before the scene starts, or miss out.

Below you'll find a breakdown of what happens in the Invincible season 4 post-credits scene, and what it could mean for the future of Invincible. If you're looking for a breakdown of what happens during the rest of the episode, be sure to check out our Invincible season 4 episode 8 ending explained.

Naturally, this means massive spoilers for the Invincible season 4 finale follow. Though we're not getting into comic spoilers here, so if you're only interested in the show, you've nothing to fear. Comics curious? Be sure to check out our guide on where to pick up in the comics after Invincible season 4.

How many Invincible season 4 finale post-credits scenes are there?

There is one Invincible season 4 finale post-credits scene, though it's technically a mid-credits scene. There is nothing to stick around for after the credits, so you can go straight into watching episode 4 of The Boys season 5 once the scene finishes.

Invincible season 4 finale post-credits scene: how deadly is the new Scourge virus?

While there's only one Invincible post-credits scene, it's a chunky one and will have huge ramifications for Invincible season 5. Back on Telescria, Allen has a mountain of 'paper'work sitting on his desk, when Telia delivers an unexpected message – a posthumous recording left by Thadeus for Allen in the event of his death.

As the new leader of the Coalition of Planets, Thadeus puts a huge burden on Allen's shoulders. In his recorded message, the recently beheaded Viltrumite reveals to Allen that before his death, he developed a new, "perfected" version of the Scourge Virus. The virus, you'll recall, is what Thadeus unleashed on the Viltriumutes, decimating the population. Many Viltrumites survived infection, however, including Nolan.

The perfected Scourge Virus, Thadeus claims, is far more deadly, and has the potential to wipe out every remaining Viltrumite, including Thragg. But it comes with a catch: species with "similar genetics" will also be affected, which is very bad news for the genetically similar human population, especially now we know that the Viltrumites are in hiding on Earth.

This leaves Allen with quite the genocidal conundrum: unleash the perfected Scourge Virus, likely killing Nolan, Mark and the entire human population in order to wipe out Thragg and the remaining Viltrumites for good, or deny Thadeus' order and risk another potential Viltrumite takeover of the galaxy.

Thadeus also reveals that Nolan knows of the weapon's existence, but "he does not and cannot know" that it's Thadeus' wish for Allen to use the perfected Scourge virus, no matter the cost, as Nolan would surely do everything in his power to stop it given his own family would be wiped out. Allen just had the worst first day on the job ever.

Invincible season 4 is now streaming on Prime Video. For a look back at the season, check out our Invincible season 4 review.