Matt Allwright and Anita Rani send an undercover mole to work at a branch of a national pub chain. They expose a catalogue of hygiene disasters including maggot-infested meat and the sausage with a secret ingredient - harmful bacteria.
Anita poses as the boss of a cleaning company and sneaks behind the scenes of a dirty kebab shop where she finds e-coli in the kitchen.
The team also showcases a handy scheme giving the public access to hygiene scores for restaurants across the UK.
