The history of bouldering, a form of rock climbing related to our most primitive instincts, is not so different from that of alpinism. When early explorers started visiting European mountains, alpinists practiced rock climbing at low heights in the suburbs so as to climb higher and more difficult mountains. This is what British called bouldering, which later became popular as Pierre Allain and his friends championed bouldering in Fontainebleu in the 1930s. The present-day concept of bouldering embracing a dynamic style of movement owes to American gymnast John Gill ’ s vision. He opened the era of high-level bouldering by introducing 'dyno' in which both feet will leave the rock face and return again once the target hold is caught. This film introduces beautiful boulders across Britain as well as discusses the history of bouldering in depth by interviewing the world ’ s best boulderers.