Serial: J  Episode Nos. 43, 44, and 45. Title: Planet of Giants

The TARDIS’ doors malfunction… opening in mid-flight and causing the Ship and its occupants to reduce to the size of an inch.  The Doctor and his companions now find themselves in an ordinary English garden that is as alien as any other planet they’ve visited, as every insect, earthworm, ant, and cat has become a giant monster to them.  And as if that wasn’t enough, the owner of the garden is about to be shot…

starring William Hartnell as Dr. Who, William Russell as Ian Chesterton, Jacqueline Hill as Barbara Wright, and Carole Ann Ford as Susan Foreman.  Written by Louis Marks, Associate Produced by Mervyn Pinfield, Produced by Verity Lambert, and Directed by Mervyn Pinfield and Douglas Camfield.

Originally transmitted from 31 October 1964 to 14 November 1964 on BBC1.