Rex the Runt is an animated claymation television show produced by Aardman Animations for BBC Bristol in association with EVA Entertainment and Egmont Imagination. Its main characters are four plasticine dogs: Rex, Wendy, Bad Bob and Vince. The series began with a short, Ident, in 1989 directed by Richard Goleszowski. After a long gestation period this developed into two unaired shorts and then thirteen ten-minute episodes that first aired over two weeks on BBC2 from December 1998. A second thirteen episode series aired from September 2001 on the same channel. As well as the core cast guest voices included Paul Merton, Morwenna Banks, Judith Chalmers, Antoine de Caunes, Bob Holness, Bob Monkhouse, Jonathan Ross, Graham Norton, Arthur Smith, June Whitfield, Kathy Burke, Pam Ayres and Eddie Izzard.

The gang journey to the North Pole, and drill a hole to find out "What's at the center of the Earth?"