The Thames at Night with Tony Robinson

Episode 1 (1x1)

Air date: Nov 26, 2021

The presenter discovers how the Thames works around the clock. He explores the stretch of the waterway from the estuary - where the river meets the sea - to the Thames Barrier. It's here, at the Barrier itself, where he begins his journey, as he's given an invitation to its control room to see how it keeps London safe throughout the night.