Death to the Daleks: Part One

As the TARDIS heads to the paradise planet Florana where the Doctor and Sarah go for a holiday, the TARDIS goes off-course and arrives on the barren planet Exxilon, where the TARDIS is losing power. The Doctor and Sarah finds a group of humans and Daleks are searching for parrinium, a mineral which is the only antidote to a space plague. Both parties encounter the nat...