Andrew Sachs narrates a programme focusing on the killer whales of Monterey Bay, fierce and nomadic hunters capable of taking down prey as big as a grey whale. As well as capturing the killers in their natural habitat, underwater film makers Paul and Gracie Atkins also uncover a secret that may threaten the whales' existence.
| Name | Type | Role | |
|---|---|---|---|
| Andrew Sachs | Guest Star |