Routine flight from London to New York City is detoured into the TZ.
For me the ending of this show is one of the most unsettling of the series. All the action takes place aboard the jet, so writer Serling had his work cut out for him. But he does keep our interest glued to the cockpit, even if the 5 man crew seems too cool and detached to be plausible. Still, the captain's (John Anderson's) unflappable reactions keep viewers attention focused on what's happening to the flight instead of the crew's reactions to it. The time travel theme is well-handled, particularly with the sonic shocks that impart an air of believability. There's also a humorous bit of byplay between the passengers reminiscent of the later Airport film series. However, someone should have taken a second look at those jungle miniatures, which must have come from some Z-movie stock footage. All in all, the show makes for a very entertaining, if unsettling, half-hour.