The Umbrella Academy is based on the comic series of the same name by writer Gerard Way and artist Gabriel Bá. According to reports, the first season followed the first volume of the comic series titled, Apocalypse Suite. Similarly, as seen in the teaser Season 2 sends the superheros to the city that is mentioned in second volume in the series called Dallas in Texas, USA. If the show follows the comic book series exactly, Season 2 will see the superheros attempting to change the course of history and prevent the end of the world by assassinating John F Kennedy (former US President).
Since the teaser does not give out much of the storyline, whether they will stick to the books or not we are yet to find out. Perhaps, the series will overtake the books in the end like Game of Thrones did towards the end.
The Umbrella Academy stars Ellen Page, Tom Hopper, David Castañeda, Robert Sheehan and Emmy Raver-Lampman, who were seen in the first season. New cast members include Yusuf Gatewood, Ritu Arya and Marin Ireland.