Join Steve Backshall in uncharted territory to uncover the world’s last unknown places.
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Geordie turns to Leonard for assistance in a new case, and Will returns to Grantchester.
Clip: S4 Ep2 | 28s
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Geordie chases down a suspect with the help of Leonard.
Clip: S4 Ep2 | 1m 5s
Grantchester's New Vicar
Meet Grantchester's newest motorcycle-riding vicar, Will Davenport.
Clip: S4 Ep2 | 53s
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