- Steve Leonard
- Simon Roberts
Episode 2 of 6
Duration: 1 hour
Steve Leonard follows grey whales as they make the longest migration on the planet - a staggering 12,000 miles. Although they travel slowly, the whales never stop and Steve finds it increasingly difficult to keep up. Harassed by killer whales, dodging fishing nets and great white sharks, can the mothers and calves survive this epic journey?
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