The vehicle is on fire when the Harts climb out, but is no longer burning just before it exploded.
When Jonathan and Jennifer climb out of their burning car before it explodes, she doesn't have her purse. In the next scene at the newspaper office, she has the purse.
When Jennifer lands the plane there is only one other passenger, who is out cold in the backseat. After landing the plane Jonathan rushes to meet her. As they embrace a man can be seen behind them inside the plane getting out of the backseat.
As Jennifer, Stefanie Powers keeps her fingernails very short, which can be seen when she takes the wallet from Mike. But the fingernails in all close-ups are much longer.
Jennifer and Jonathan say the compass shows East and West, but it has numbers (degrees) only.
Towards the end of the episode, Jonathan and Jennifer are at the newspaper office. Jennifer calls the crop dusting office, Mike answers. They arrange to meet at another location. As Mike says "ok," he says it quietly enough and the receiver is far away enough from his mouth, Jennifer couldn't have heard it.
(At 1:50) In the opening scene, right before Max leaves the kitchen, he says, "Can you think of anything else, Mrs. H?". Jennifer replies, "No, no, just the usual, Max." However, her lips don't move at all! In fact, she's completely motionless as he walks past her.