Primevals Mammoth May Return

They did, though, confirm that Paul Cornell, who wrote the mammoth episode, was too busy to write for series three.

There was also a trailer for series three on show at the Expo – featuring a very impressive car chase sequence involving a ostrich-like dinosaur – and a very edgy clip with a Gremlins-esque creature dragging some poor guest star to his death down some stairs from episode two.

More from and about The London Expo on the site later.