Lt. Charlene Masters
Enterprise is carrying out a survey of an uninhabited planet when it is
shaken by a huge disturbance. Spock reports that, according to his sensors,
everything within range had ceased to exist for a brief moment of time
during which a life form had appeared on the surface of the planet.
A landing party beams down and finds a small craft containing a badly
injured being, of human-like appearance, identifying himself as Lazarus.
He pleads for help, claiming that he has followed an 'evil thing' down
to the planet despite the fact that Spock's scans show no other life forms.
Lazarus is taken back to the Enterprise sickbay where he suffers regular
convulsions, coinciding with disturbances on the planet, and a wound on
his head seems to appear and disappear of its own accord.
Scanning a source of radiation on the surface, Spock concludes that it
may be a 'rip in the universe' which they could pinpoint using Dilithium
crystals. Lazarus points out that he could use the crystals to defeat
his 'enemy' but Kirk refuses to supply him with any. In desperation, Lazarus
steals some of the crystals but is soon apprehended, strangely blaming
his 'enemy' for the theft. None of the crystals can be found.
After further thought, Spock postulates that the radiation must be coming
from a parallel universe, at which point they come to the realisation
that 'Lazarus' is, in fact, two different beings who are constantly criss-crossing
between them, causing the disturbances they have experienced. Kirk and
Spock conclude that if the two of them actually meet it could destroy
The 'other' Lazarus also manages to steal some of the crystals and escapes
back to the surface of the planet. Kirk beams down and finds him mounting
the crystals in his disabled ship. He throws himself at Lazarus but, at
that moment, there is a shift and he finds himself in the alternative
universe. A much quieter, calm Lazarus explains to him that the other
one is mad and has his mind set on destroying both universes.
If Kirk can somehow manoeuvre the mad Lazarus into the corridor between
the universes and destroy his ship then the other Lazarus will be able
to keep him there. Kirk achieves this and the two versions of Lazarus
are last seen struggling together in the 'corridor' as the rift heals,
sealing them in to battle against each other for all eternity.