The trivia item below may give away important plot points.
The closing scene of the segment "A little Peace and Quiet" shows what is supposed to be a Soviet nuclear-tipped missile about to impact the town with rocket engines blazing. Intercontinental ballistic missiles (ICBMs) don't work that way. The engines fire in the launch ("boost") phase, but the rest of the missile's trajectory is strictly inertia; like a cannonball after it's fired. That post-boost inertial phase is the ballistic part. Thus, assuming that the warhead was still attached to the rocket body (not the case with MIRVs), the engines would have run out of fuel before the rocket had even completed the boost phase.