Nature - Season 35 Episode 16 -

In this two-part series, join John Downer Productions, producers of "EARTHflight" and "PENGUINS: Spy in the Huddle", for a front row seat into an in-depth look into the lives of dolphins. The series incorporates unique footage from 13 ingenious “spy” cameras including animatronic squid, a robotic turtle and even a dolphin “double agent”.