The final episode in this inspiring series sees Hugh Fearnley-Whittingstall take on the might of junk food marketing.
He compares it to healthy food campaigns and is shocked by the difference.
He also convinces a GP surgery in Bristol to trial weighing every patient before they see a doctor to see if a dose of reality can help tackle the obesity crisis.
Hugh returns to Newcastle to review his ambitious target of the city losing 100,000lb – have those Geordies lost anywhere close to that?
After a trip to the Tory Party Conference to drum up support, he reveals his grand plan to tackle this health crisis once and for all – with a little help from fellow crusader Jamie Oliver.
Please note this programme airs at 10.45pm in Scotland.