The series premiere of CBS’ reboot of Matlock contained a surprising twist regarding Kathy Bates‘ character — but how will that play out further?

During the sneak peek of the series, which aired on Sunday, September 22, Bates’ character Madeline “Matty” Matlock was introduced as a former attorney with the same last name as the iconic Matlock series from the 1980s. Matty tried to get a job at a prestigious law firm after her husband cheated on her and died, leaving her to care for her grandson alone.

Warning: Spoilers below for the series premiere of Matlock.

However, in the final minutes of the premiere, it became clear that Matty lied about her identity (her name is actually Madeline Kingston) in an attempt to get a job at the law firm she believes is responsible for her daughter’s death. Lea Lewiswho plays Sarah in the upcoming CBS series, broke down to We weekly what the big reveal means for the rest of the season.

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“I would love it if Sarah could expose Maddie. Because I think of all the people who would be snooping around, it would be her,” Lewis teased during an exclusive interview with Us“It’s so funny because Sarah always says the things that no one wants to say.”

Sarah is upset when Matty is hired to work on Olympia’s (Skye P.Marshall) team.

“She’s kind of struggling with the age difference and she’s like, ‘Okay, who is this older person who’s just doing all these jobs that Sarah’s worked her whole life for?’ So she kind of picks up that attitude from herself,” Lewis explained. “But if Sarah said something, people would probably think she’s just competitive and anxious.”

Lewis doesn’t think anyone would believe Sarah if she found out the truth about Matty, adding: “If Sarah said, ‘Hey, look at all this information,’ she’d just be told, ‘Oh, that’s Sarah being Sarah again.’ She overanalyzes everything and that’s part of what makes her feel different at work.”

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Despite Matty keeping this big secret from everyone, her friendships with Sarah, Billy (David Del Rio) and the others will continue to delve deeper.

“When Matty comes into the firm, (Sarah) meets someone who is strangely patient with the way she behaves,” Lewis noted. “But (Matty) also has a very gentle way of teaching her a lesson and challenging her a little bit. When Matty comes into this law firm and starts talking to people, people are completely thrown off. Because (people like Sarah) have never really had to deal with someone who is so understanding. She’s super smart and can keep up — but she’s someone who brings out the best in them before they even realize it.”

Lewis got to share many scenes with Bates on Matlockwhat an honor it was for her. “When (Kathy) arrives and the way she devours a script before she even gets on set — she’s a walking Hollywood cinematic documentary,” she raved. “I think, ‘Wow, everything you do is so present and so intentional.’ She could be so tender and yet so cutting (as her character). Just working with her makes my job so incredibly easy.”

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While Matlock finds its audience on CBS, Lewis is excited about what’s in store for Sarah.

“You meet Sarah as this lone wolf. Later she realizes that wolves don’t really work alone — they have to live in a pack to thrive,” she teased Us. “You’re going to see that in all aspects of her life. She’s going to start learning a lot about what it’s really like to be human. There’s not just one way.”

New episodes of Matlock will air Thursdays beginning October 17 at 9:00 p.m. ET during CBS’s official premiere week.