Jo mentions that her mother use to make her theatre costumes when she was a girl. Throughout the rest of the series, it is mentioned many times that Jo grew up with a dad, 3 brothers and no mom.
Zoe and Jack have an argument about whether she had been a cucumber or a tomato in her school play. Jack claims it doesn't matter because they're both vegetables. Zoe responds that a tomato is a fruit. Because cucumbers grow from flowers and contain seeds, however, they are botanically fruit as well. Carter might have won the argument if he had known this.
The three star general is wearing Cavalry Branch Brass. General Officers do not wear Branch Insignia on Their Uniform collar lapels. They are "general" officers in charge of all branches.
Sheriff vehicle's U.S. flag is facing wrong way on passenger side. Blue field should face front of vehicle.
After Jack shoots Henry in the struggle with Jason, the hammer is down on his pistol when Jason activates his machine and escapes. The hammer should be in the cocked position after a shot is fired.
Although it may have been missed by the characters at the time, nobody noticed that Henry had been shot and the Sheriff was holding his gun while Jo uncharacteristically had not not drawn her gun or reacted to the gun or the wound.
The hidden camera Jack wears near the end of the episode would be obstructed by his shirt. In order to get clear video, Jack would have needed the shirt to be partially open revealing the camera lens.