Tightly constructed script, fairly impressive special effects for a 70's TV movie, interesting characters, above average acting, 70's clothes, plenty of drama. I enjoyed the hell out of this movie and the two and a half hour runtime flew by! Some people might be turned off by the lack of action, but for me the story was interesting enough and I kinda liked seeing a film that focused more on the human than the destruction and did it right.
If you can find it I say check it out. I'll definitely be watching my copy again. Also Lloyd Nolan is credited on IMDb as being in the film as "Doctor", but I can't find him for the life of me and I don't see his name on the opening or closing credits.
Older sister from SLUMBER PARTY MASSACRE II.