September 14 - October 12, 1968: The Mind Robber TARDIS Data Core entry
This is simply one of the best things ever, more than making up for the perceived failings of The Dominators. It's a madcap metafictional romp, not just breaking the fourth wall, but stomping all over it.
To escape from the horrifying volcano at the end of the last story, the Doctor moves the TARDIS out of space and time ... and into the land of Fiction! Here our intrepid crew meets up with Rapunzel, Lemuel Gulliver, and The Karkus (a superhero from Zoe's time), and they face the machinations of The Master (no, not that one)!
All this, and the timeless shot of Zoe in her shiny jumpsuit clinging to the spinning TARDIS console.









