|The motor! We've thrown a rod!|
I'll stop that now...
Spock crashes a shuttle, the stranded crew get testy and insubordinate (again!), then they wait for enough guest stars to get killed by giants so the rest can take off and be rescued.
The goofy monsters are effective as omnous sounds, oversized weapons, and quick glimpses, but in full view, less so. The B plot with the snotty bureaucrat drags this one down in my book.