A new poster for the next episode, 'Sins of the Father,' of Arrow reveals that Thea (Willa Holland) life "hangs in the balance."

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The image shows Thea, her head hung low, and Malcolm Merlyn (John Barrowman) in the backdrop. The caption on Twitter states: "Thea's life hangs in the balance on a new #Arrow."

Thea recently found out that Malcolm was her father and it has also been suggested that Malcolm will be watching out for her, and trying to protect her from whatever danger lies ahead. It seems like Thea might be endangered by her father's new role as Ra's al Ghul, which Nyssa al-Ghul (Katrina Law) is out to get him for. Perhaps Nyssa will take Thea hostage and threaten to kill her to get to Malcolm.

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The synopsis and preview clip for the next episode, 'Sins of the Father,' of season 4 of Arrow have also been unveiled.

This episode is going to bring Nyssa al-Ghul back into the frame as she plots revenge against Malcolm Merlyn, the most intriguing part is that she will try and bring Oliver (Stephen Amell) into the fold and he might have to oblige.

Here's the official synopsis:

"Oliver (Stephen Amell) receives an offer from Nyssa (gues star Katrina Law) that is hard to refuse. Meanwhile Thea (Willa Holland) continues to battle the blood lust, Malcolm (John Barrowman) steps in to help his daughter, and Laurel (Katie Cassidy) has a heart to heart talk with Nyssa."

The episode will air on February 10 at 8 pm on The CW.

Watch the clip:

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Arrow, The cw, Television