The Ice-Age Monster

The Doctor lands the TARDIS during the period of the Ice Age. However, the great cold froze the controls of the TARDIS, not allowing them to leave. Suddenly a large monster picks up the TARDIS with its mouth. The TARDIS shakes rapidly, lifting up the Doctor, Ian and Barbara. However, the monster's hot breath thaws the controls, allowing the Doctor to fly the TARDIS away - likely leaving the creature confused