Fancy this for lunch? Sea cucumber tea? Wolffish and chips? Trout candy floss, or a chocolate starfish? Heston Blumenthal turns to the sea in this special episode of Feast. He is on a mission to unlock our oceans' alternative larder and create the ultimate sustainable fishy feast that will completely change the way we think about seafood. Heston dives straight in at the deep end as he creates an amazing sustainable seafood menu. He takes a trip to the fjords of Iceland to catch a dangerous fish the Vikings loved, goes diving for sea cucumbers in Scotland, and turns trout and crab into a delicious dessert. For his starter Heston conjures up a Fishy Afternoon Tea complete with a side of Laughing Gas. This is the perfect prelude to the magnificent main course, Heston's Day Out at the Seaside with Wolffish Cheeks and Saucy Seagull.