Plot: Each week, join Chris Nix, Siddy Holloway and Laura Hilton-Brown from the Museum’s Hidden London team and host Alex Grundon as they explore the secret and mysterious spaces of London’s transport system. In series 1, the team focus on the different sites in the Hidden London tour programme, sharing historical titbits that are revealed on the tours as well as the behind the scenes processes they go through to make the tours such as success