As Season 2 of Invincible continues, Mark Grayson is doing his best to leave Omni-Man's betrayal behind. It hurts that he lost his father Nolan, but Mark has to find a way to let the people of Earth know he won't become an evil Viltrumite. It's why he's trying to do what he can help the planet the same way the Guardians of the Globe do.
Source:https://www.cbr.com/invincible-season-2-episode-2-biggest-changes-comic/