LIFE ON A WIRE | Premiering June 22, 2011 (High Wire Pole Cam from 6/4/11 in Puerto Rico)

Filmed June 4, 2011 for a future episode of LIFE ON A WIRE, footage from a balance pole cam captures seventh generation tightrope walker Nik Wallenda and his mother Delilah walking a high wire in Puerto Rico - the infamous walk that killed Nik's great grandfather Karl Wallenda in 1978. For more of LIFE ON A WIRE tune in to Discovery Channel June 22 at 10pm ET/PT. | dsc.discovery.com/#mkcpgn=ytdsc1