Overview: The Semifinals begin in Los Angeles where the competing ninjas face up to six challenging obstacles and race head to head for a spot in the National Finals.
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First Air Date: Dec 12, 2009Last Air date: Jul 15, 2024Season: 16 SeasonEpisode: 234 EpisodeRuntime: 60 minutesQuality: HDIMDb: 6.81 / 10 by 67 usersPopularity: 76.892Language: English, Spanish