description About
The science of a human cannonball is broken down. Parkour enthusiasts show off all the various things that can go wrong when attempting to run across rooftops for sport.
Info
- verified Status: Returning Series
- person By: Unknown
- calendar_month Release Date: 2014-06-27
- video_camera_front Companies National Geographic, National Geographic Channels International, IWC Media
- tag Season: Season 1
- timer Episode Runtime: Mins
- star Rating: 0 / 10
- visibilityViews: 2 views
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starUser Ratings:
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