Death to the Daleks

A power failure in the TARDIS draws it off course, and the Doctor and Sarah Jane Smith end up stranded on the bleak planet of Exxilon. They soon meet members of an Earth expedition in a similar situation. The humans are searching for a rare mineral, but first they must find out what is draining their power and avoid what’s inside another grounded spaceship — the Doctor’s oldest enemies, the Daleks...