MacGyver's watch is missing in the shot of him picking up bullets.
A Smith & Wesson would not discharge from the single action position without the trigger actually being pulled. The breech block would prevent the gun from firing.
MacGyver crashes a Jeep with square headlights, but afterwards it suddenly has round headlights.
Jack's birthday is February 3, 1951, making him 37 years old at the time of this episode.
On-screen, David Bloom's character is referred to as "Simon". However, the end credits list him as "Gil".
The hockey game that the hitmen are watching in the hotel room is actually a clip from the third season episode "Thin Ice".
MacGyver as a youth has his hair parted on the opposite site from where it should be.
Trivia: The coordinates for the gold stash (62° 41' 19" N, 164° 19' 38" W) pinpoint an area about 20 miles from the coast of the Bering Sea next to the Yukon River in Alaska. It is entirely possible that such a route would be used flying from Russia to the U.S.
Blood disappears off a prop booby-trap that had previously been shown to have blood on it.
Though it rains at one point in the episode, later scenes set immediately after offer no evidence of precipitation.
Pete's Phoenix Foundation ID card shows him not in business wear, but the precise fishing outfit he's wearing in the episode.
Deegan has an operator trace an "open line", but since Pete hung up the phone, this would not be possible.
The police interrogate Roxy, a primary suspect in Rogan's death. However, she produces an alibi so iron-clad that they don't at all believe she was responsible. It's implied there were witnesses at her workout. And yet as the episode proceeds, it's clear that her alibi was false. How she was able to create an unbreakable false alibi is overlooked for the rest of the episode.
A photo of crumpled, burnt paper shows it to be perfectly flat.
Despite the fact he's working undercover to infiltrate the logging company, MacGyver uses his real name.
In "Runners" we learned MacGyver was seven years old when his father died, but here he claims to have seen him when he was ten years old.
As established in "Serenity", Serenity is located in Montana. However, Hole-in-the-Wall was in Johnson County, Wyoming, considerably south of the Montana/Wyoming border.
At the 44:25 mark as MacGyver jumps onto Marsh's car, his hair becomes a dark-brown/black as the stunt double takes over.
MacGyver uses a tape recorder to capture phone dialing, and he speaks loudly towards the end. When the tape is played, his voice is not heard.
After the security guards arrest MacGyver, they put him in the back seat of what is clearly a police car. However, there is no cage separating the front from the rear, and the rear doors have easily-accessible push locks.