Last updated on Tuesday 21 January 2014 at 04:35 UK

Watch Star Trek - Series 3 - Episode 15 Online Free

Star Trek - Series 3 - Episode 15

http://www.iplaydownload.com/tv-series/?q=Star+Trek+-+Series+3+-+Episode+15

The Enterprise finds itself host to two alien beings from the same planet, who share an intense and self-destructive hatred of each other.

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