That Which Survives (episode 69, stardate unknown): Kirk, McCoy, Sulu and geologist D'Amato beam down to a geologically unstable planet. There they discover Losira, a woman whose touch means death. Meanwhile the Enterprise has been hurtled a 1,000 light-years away. Let That Be Your Last Battlefield (episode 70, stardate: 5730.2): The Enterprise discovers a damaged shuttlecraft and beams aboard a half-white half-black alien. A second alien with similar but inverted coloring beams aboard and attempts to take the first alien prisoner.

DVD release of two episodes of the television series: Star trek; originally broadcast 1/24/1969 and 1/10/1969. Based on "Star trek" created by Gene Roddenberry. Special features: interactive menus ; scene selection ; original broadcast preview trailers.

Episode 69. That which survives (50 min., 30 sec.) / teleplay by John Meredyth Lucas ; directed by Herb Wallerstein -- episode 70. Let that be your last battlefield (50 min., 30 sec.) / teleplay by Oliver Crawford ; directed by Jud Taylor.