This was full of the usual plot holes. A stewardess is being stalked and harassed by an unknown assailant. She just happens to be an ex-college roommate of Sabrina's, so the Angels go undercover as ---- you guessed it, stewardesses.
The actual plot is so nonsensical that it's hardly worth summing up, but let's just say that whoever wrote this episode didn't seem to know how a plane's autopilot worked. Jaclyn Smith and Cheryl Ladd are the highlights here, though their outfits are pretty tame. Several 'suspects' are presented throughout the episode, but the show doesn't really take off until the Angels take a plane up on a training run. That's where the bad guy(s) is(are) revealed in a story twist that is beyond silly. I've seen these types of episodes before, where the bad guy commits a crime to cover up another crime that never would have been discovered had he not committed the second crime. It's a sin that CA is guilty of quite often and usually goes unnoticed because there's enough going on (Angel distractions) to make up for it. Not in this case however. Hopefully the writer was permanently grounded.