Season 2 of Based mostly on a True Story is reuniting Kaley Cuoco and Chris Messina — as new dad and mom — with Tom Bateman . Peacock launched the official trailer on Thursday, October 24, which picks up with Ava (Cuoco) and Nathan (Messina) navigating life with a child. They’re thrown for a loop, nonetheless, when Ava’s sister Tory ( Liana Liberato ) turns up engaged to Matt (Bateman).

“You can not marry a assassin,” Ava tells Tory, who fires again, “Matt is actively taking steps to vary.” Ava units off on a mission to show that Matt continues to be as much as his serial killer methods. That’s the place Drew ( Melissa Fumero ) is available in, who turns into Ava’s buddy however can be a detective wanting into a brand new sequence of murders.

Whereas Matt claims it isn’t him, Ava isn’t certain whether or not he’s telling the reality. “I want I might make her see who he actually is,” Ava says after Matt explains how he was “sick” however “therapeutic” from his tendency to kill different folks. Tory is lower than thrilled together with her older sister’s conduct.

,”You might be obsessive about him. You might be bored together with your middle-aged mush of a life and he retains issues thrilling for you,” she says. The remainder of the sneak peek hints at stakeouts, a intercourse occasion and loads of homicide boards.

“If I don’t clear up this within the subsequent 4 hours, folks will die,” Ava realizes. “That is so harmful, I’.