Q: How many members of the U.S.S. Enterprise does it take to change a
light bulb?
A: 7. Scotty will report to Captain Kirk that the light bulb in the
Engineering Section is burnt out, to which Kirk will send Bones to
pronounce the bulb dead. Scotty, after checking around, notices that they
have no more new light bulbs, and complains that he can't see in the dark
to tend to his engines. Kirk must make an emergency stop at the next
uncharted planet, Alpha Regula IV, to procure a light bulb from the
natives. Kirk, Spock, Bones, Sulu, and 3 red shirt security officers beam
down. The 3 security officers are promptly killed by the natives, and the
rest of the landing party is captured. Meanwhile, back in orbit, Scotty
notices a Klingon ship approaching and must warp out of orbit to escape
detection. Bones cures the native king who is suffering from the flu, and
as a reward the landing party is set free and given all of the light bulbs
they can carry. Scotty cripples the Klingon ship and warps back to the
planet just in time to beam up Kirk et. al. The new bulb is inserted, and
the Enterprise continues with its five year mission.