24/B4: Grant McCartney

CLIP07/10/16
Details
Also available on the NBC app

Follow Grant McCartney on this NBC digital exclusive as he gets ready for his Los Angeles Final run on American Ninja Warrior.

Appearing:Matt IsemanKristine Leahy
Tags: american ninja warrior, ninja warrior, 24b4, nbc digital series, ninja warrior digital series, ninja warrior bts, ninja warrior behind the scenes, ninja warrior 24b4, grant mccartney, Los Angeles Finals
S8 E63 minWeb ExclusiveReality and Game ShowPrimetime
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