Follows scientists investigating why huge numbers of sharks gather in a dangerous lagoon on Australia's Great Barrier Reef, revealing a complex battleground.
| Actor | Role |
|---|---|
 Dan NachtrabSelf | Self |
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Follows scientists investigating why huge numbers of sharks gather in a dangerous lagoon on Australia's Great Barrier Reef, revealing a complex battleground.
| Actor | Role |
|---|---|
| Dan NachtrabSelf | Self |