We finally know why the Dark Archer is returning for the Arrow season finale. As Thea tries to leave Starling City— she has a run in with members of Slade Wilson’s evil Mirakuru army. Guess who swoops in to save the day? That’s right, the believed-dead Malcolm Merlyn.

Executive producer Andrew Kreisberg tells us more:

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“Thea will find herself in a precarious predicament and she will be saved by her father. Malcolm is going to offer her what she doesn’t have anymore. That was part of our math with killing Moira. If we were going to send Thea in that direction, she needed to have nothing pulling her back here. Now she has a brother who lied to her and has done something unforgivable and no mother. On the flip side, she has Malcolm Merlyn saying, ‘I will never lie to you, Thea.'”

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The season finale of Arrow airs Wednesday, May 14 on The CW

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