Matt is in Derbyshire, where he follows a new pilgrimage trail set up to mark the 350th anniversary of the Great Plague. He also visits the Peak District village of Eyam, where residents chose to contain an outbreak by isolating themselves from the rest of the region. Joe manages to capture fish on film at Haddon Hall, whilst Adam Henson is in Snowdonia herding sheep.
Matt goes looking for basking sharks off the Cornish coast and looks on the shoreline for shark egg cases. Ellie finds out about a project to map the entire UK coastline and finds out about stinging nettles.