Invincible season 3 is set to focus on Mark's refusal to conquer Earth and the potential Viltrumite invasion. My Adventures with Superman's Kryptonian arc shares similarities with Invincible's Viltrumite story, but the latter remains more engaging. Invincible season 3 may feature violent and potentially controversial storylines as Mark faces off against the Viltrumites.

While it may be a while before Invincible returns for season 3, its next story is already clear, but one other superhero show is already exploring this narrative, and it's airing right now. Invincible season 2's ending showcased Mark defeating Angstrom Levy and permanently changing in the process. Mark's brutal beatdown seemingly killed the villain and set up a darker future, making his impending battle with the Viltrumites even more difficult. With Omni-Man failing to convince Mark to conquer Earth, other Viltrumites have approached the hero, threatening to do it themselves if Mark refuses to comply with their mission.