Clare Balding joins archaeologist, Charlotte Frearson and her dog, Indy, on their daily, five mile walk to work. A few years ago Charlotte was suffering from crippling anxiety, her doctor suggested medication or a dog. After detailed research Charlotte decided a whippet would be better than drugs and she bought Indy, short , of course, for Indiana Jones. Everyday they walk from their home in Crouch End, across London to UCL's Institute of Archaeology in Bloomsbury. It's hard to know who enjoys the walk more as Charlotte has the chance to reflect on the antiquities that might lie beneath their feet and Indy has the chance to hunt out tasty morsels on the pavement. As they take their favourite route from park to park Charlotte explains to Clare how Indy is now being assessed to be a Pet As Therapy dog, not just for her but for the students who sometimes find it easier to talk to him than their tutors.