Legacy of the Silver Shadow
Season 1, Episode 8: But We've Only Got 53 Tunnels
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All Episodes - Season 1
Episode 1
Tomorrow the World
Episode 2
The Feral Element
Episode 3
Round One
Episode 4
Ticket to Ride
Episode 5
Man of Steel
Episode 6
New Girl
Episode 7
Stephanie Tate
Episode 8
But We've Only Got 53 Tunnels
Episode 9
Teenage Sidekicks
Episode 10
Kings of the World
Episode 11
No Such Thing
Episode 12
Fire in the Hole
Episode 13
Frankenscience