Oxford Circus customer assistant Matthew uses his encyclopaedic knowledge to help rush hour crowds. Police crack down on the pickpockets and shoplifters who plague the stores. The Dominion Theatre prepares for press night for the musical Bat Out of Hell.

Sandro and his team work through the night to redress Benetton's flagship store before the doors re-open. Engineer Jenna has to get the new Crossrail station ready for an open day. Anticipation is high as staff at Christys' hat shop wait for a special guest.

London is melting in the grip of a heatwave, plus the annual Pride Parade is taking place. The heat results in nearly 200 casualties, tons of rubbish, dogs on death's door, celebrity photographers and summer crowds late into the night.