Matt Baker and Julia Bradbury are in the county of Hampshire. Matt explores the maritime history of the area by helping out on the largest and most powerful warship of her time, HMS Warrior. Julia is in Portsmouth where a story of an epic journey of naval heroism began with the unbelievable bravery of the Cockleshell heroes she also visits the only wasabi farm in the UK. Tom Heap investigates how, when it came to innovation in farming, Britain used to be a world leader. But with a global food shortage on the horizon, have we still got what it takes to meet the challenges of the future? Adam Henson is on the hunt for a new White Park bull for his farm in the Cotswolds - but can he afford the high asking price?