That Which Survives: (Episode 69)

Kirk and company are stranded on a hostile planet where they are greeted by Losira, a beautiful woman whose touch means instant death. Meanwhile, a power surge has hurtled the U.S.S. Enterprise 1,000 light-years from the planet.



Let That Be Your Last Battlefield: (Episode 70)

Kirk beams aboard two warring half-black, half-white beings, named Lokai and Bele, When Kirk tries to intervene, Bele gains control of the U.S.S. Enterprise and threatens to destroy it.