Ian and Barbara are aboard the TARDIS uninvited. The Doctor ignores Susan's pleas to let them go. The TARDIS takes off and travels back to Stone Age times, where the crew make the mistake of venturing outside. Show less
Discover 11,128,835 listings and 281,616 playable programmes from the BBC
Ian and Barbara are aboard the TARDIS uninvited. The Doctor ignores Susan's pleas to let them go. The TARDIS takes off and travels back to Stone Age times, where the crew make the mistake of venturing outside. Show less