6/6 Alys grows Jerusalem artichokes to harvest when the rest of the garden sleeps.
2/3 Gregg Wallace sees how Ocado are using robots to revolutionise online delivery.
2/2 Nadiya spends time with a charity that delivers school dinners to deprived children.
1/4 Nisha travels to the West Midlands to learn about Punjabi food from the north of India.
The chefs cook their menus for guest judge Rev Richard Coles.
7/10 Gregor MacLeod and home bakers from across Scotland share sweet and savoury salty recipes.
2/2 A look at Easter food of Greek Orthodox, Filipino and Italian communities in the UK.
Scientist Mark Miodownik challenges chef Marcus Wareing to a cookery competition.
6/6 Giles Coren and Polly Russell introduce the family to tastes of the future.
Gregg Wallace is in Germany at a pencil factory.