Leah Remini and Sofia Pagán Leah Remini and Sofia Pagán

Leah Remini has proven time and time again on her TLC reality show that she'll do whatever it takes to be a great mom. But does that include conquering one of her lifelong fears?

In this exclusive sneak peek from Thursday's season finale of Leah Remini: It's All Relative, the actress attempts to go zip-lining while on vacation in order to overcome her fear of heights for her daughter.

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"My daughter's there and I want to show her that I'm not afraid," Remini tells the cameras. So did she actually do it?

Check out the exclusive video to find out:

Leah Remini: It's All Relative airs Thursdays at 10/9c on TLC.