Sezóna 4 Epizoda
- Sezóna 4 Earls Court and Alperton
- Sezóna 4 Paddington and Tottenham Court Road
- Sezóna 4 Waterloo and Marble Arch
- Sezóna 4 South Kentish Town and London Underground Control Centre
- Sezóna 4 Thames Tunnel and Lambeth North
- Sezóna 4 Ruislip Depot and Warren Street
- Sezóna 4 Northumberland Park and Finsbury Park
- Sezóna 4 Stockwell and The DLR
- Sezóna 4 Gloucester Road
- Sezóna 4 Old Street
Secrets of the London Underground - Season 4 Episode 9 9. epizoda
7.40 44 minut 
