Anne Hegerty, Mark Labbett and Shaun Wallace - three of the biggest brains of the quizzing universe escape the confines of the studio to embark on an adventure like no other.

The Chasers' Road Trip: Trains, Brains and Automobiles follows our three fearless brainboxes as they pit their wits against extraordinary competition as they try to answer the age old question 'Are we really as smart as we think we are?'

We get to see three of Britain's best-known brainboxes as we've never seen them before. On this intellectual journey like no other, our cerebral celebrities question if we underestimate animal intelligence by exploring the brightest sparks in the animal kingdom.