Supergirl's third season is set to show the making of a villain, and now we've got a bit more of an idea of how that will unfold.

In a recent interview with Entertainment Weekly, Odette Annable teased what to expect with her character, the DC Comics villain Reign. When viewers initially meet Reign, she'll be a single mother named Samantha, with no idea of her superpowered potential.

"Samantha is a single mother, she's a hard worker, she's very much a working mom in the sense that she's trying to juggle it all, as one does, as I do in real life." Annable explained. "She loves her daughter (played by Emma Tremblay) more than words can express. They have a really special bond. What I think is really special about this storyline is it's a slow play and you'll get to see this whole heartbreaking story unfold in a really — they're taking their time with it, and we have the time to do it. I think the audience is really going to hopefully relate."

When it comes to how that will unfold for Samantha onscreen, Annable hinted that it will be a gradual - but fascinating - reveal.

"For right now, it's her discovering." Annable added. "Clues are coming up and she's slowly discovering that something is happening. That's all that I know so far."

So what will Samantha's motivations ultimately be, once she further embraces this villainous side? As of right now, Annable says that the sky is the limit.

"I don't necessarily know [her motivations] myself." Annable added. "I know that everything she does is for her daughter and I know that they have this brilliant relationship and she's this working mom, but I don't know where the story is going to unfold or when that left turn is going to happen. I'm very excited for it, and I know that this is such a different character than they've ever had on the show. But that's really all I know. I wish that I knew more, I'm excited to know more."