Hannah Fry takes a spectacular look at the science of size by imagining a parallel world in which everything is made bigger or smaller.

Filmed in over 60 different locations this epic documentary series will draw on the most spellbinding and dramatic stories from all corners of the globe. It will reveal the ways all life is connected and how natural events affect animals.

In this first ever television documentary of Banks' life, journalist Ian Cross explores his influence over five decades during a critical period of great change in the world, from 1770 to 1820.