Helen Skelton uncovers the inside secrets of some of Britain's most popular brands and explores the lengths they go to keep their rivals at bay and win over shoppers.
Heinz
Season 1 • Episode 1
Walkers
Season 1 • Episode 2
Kellogg's
Season 1 • Episode 3
McCain
Season 1 • Episode 4
Warburtons
Season 1 • Episode 5
Wall's
Season 1 • Episode 6
Guinness
Season 1 • Episode 7
Typhoo
Season 1 • Episode 8
