Third Doctor and Jo
"The TARDIS arrives on Spiridon, an inhospitable planet where the vegetation is hungry and extremely dangerous. The Doctor has been badly hurt and has fallen into a coma, so it's up to his concerned assistant Jo to leave the safety of the tardis to find help. She soon discovers a jungle containing invisible creatures, and that the planet is hiding a terrible secret about The Doctor's oldest enemy, the Daleks..."
Written By: Terry Nation
Directed By: David Maloney