Watch Nightline Season 38 Episode 258 - Fri, Dec 29, 2017

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Nightline Season 38 Episode 258
Tracking Killer Whales off the Coast of Norway; The Making of 'Despacito' and its Rise to be Summer's Top Song
First Aired: December 29, 2017 -

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Season 38 Episode 258 - Video Clips & Extras

Watch Nightline - Fri, Dec 29, 2017 (s38 e258) Online - Watch online anytime: Stream, Download

Nightline, Season 38 Episode 258, is available to watch free on ABC and stream on ABC News. You can also stream, download Nightline on demand at online.