A construction crew working on a new Alaskan oil pipeline has uncovered the frozen Blob. Not knowing what it is, the construction foreman brings a small chunk of it home to southern California with him, upon which it promply escapes, grows, and terrorizes the community, slinking through the sewers. Eventually entering the brand new bowling alley (and attached, still-under-construction ice-skating rink), the Blob is ultimately defeated by freezing the ice rink floor. A decidedly campy film, Beware! nonetheless plays many monster movie tropes dead straight, particularly the Cassandra Truth-spewing heroes and the Obstructive Bureaucrat who runs the bowling alley.
This film provides examples of:
- Black Dude Dies First: Well, technically it's a black woman, but her husband soon follows.
- Camp: The '70s sequel.
- Dead Star Walking: Of the five actors advertised on the film's poster, only Robert Walker has any more than a few minutes of screentime. And of the remaining four, only Godfrey Cambridge's character has any particular relevance to the story outside of being a random Blob victim, and even then only because he happens to be the poor schmuck who unwittingly retrieves a sample of the original Blob and allows it to thaw out.
- The End... Or Is It?: The film ends with the Blob frozen (again), but a thoughtlessly-placed TV light thaws enough of it out to allow it to attack the local sheriff as he gives an interview.
- Improbable Infant Survival: A junior campers troop is attacked (offscreen) by The Blob. The scout leader is killed, the kids escape.
- Recursive Canon: Beware! The Blob has the Blob devouring a man while he's watching the original film on TV.
- Sealed Evil in a Can: A foreman for an oil pipeline construction crew brings home a chunk of the Blob from Alaska (where it had been deposited in the original film) in a sealed thermos.
- You Have to Believe Me!: Particularly notable in this one, in which the leading lady is not believed... mainly because she just keeps mewling "It came after us!" ad infinitum.