One of things trailers for Season 2 of Invincible promised was a lot more action. Fans saw glimpses of the Guardians of the Globe trying to improve against many enemies after J.K. Simmons' Omni-Man left Earth. Of course, the core of the story, Nolan's son Mark, is present as well, eager to show he can safeguard the planet, too -- whether solo or with the Guardians.
Source：https://www.cbr.com/invincible-season2-premiere-changes-from-comic/
