Continuity: Solo and Illya, chasing a Thrush agent, are driving a white Dodge. When their car overturns, it not only turns blue, it changes into another model of car altogether.

Continuity: When an undercover Illya carries the wine boxes into Strago's vineyard, the bottom box has a dark brown striation under the word "Chicago." This disappears and reappears, then disappears again as the scene progresses.

Visible crew/equipment: When the captured Illya is brought into Strago's conference room, the boom shadow is lurking on the curved wall over their heads.

Revealing: Solo's boat is blown up by Strago's new superweapon. But stock footage used for the explosion is a little too obvious: the picture abruptly changes from color to black-and-white.

Visible crew/equipment: When Miss Diketon walks in on Strago trying to make time with Pia, the boom shadow is moving on the wall behind his head.

Continuity: The first time we see the tomb being sealed, the bricklayer has built the wall up to shoulder height. When the camera shot reverses angles, the wall is suddenly only waist high.

Plot hole: Solo gets a letter from Waverly admitting him to forbidden Chupat. If it's that easy, why doesn't Illya get the same privilege? So that we can see him reduced to the humiliating and pointless ruse of sneaking in wearing an inflated yeti costume. Definitely U.N.C.L.E.'s "jump the shark" episode.

Continuity: The cinder blocks used to seal the tomb change color. Initially, they're black. But when the wall collapses on the bricklayer, they've turned white.

Continuity: The giant (and obviously fake) spider is beside Marsha, crawling toward her extended right hand when Illya tells her to freeze. But when he clobbers the foam-rubber menace in the next shot, he attacks the grass behind her. And her right hand, stretched out on the grass when he said "Freeze," has instantaneously moved to her lap between takes.

Revealing: The snake encountered by the prisoners is initially black with white markings (a stock shot). But when Illya kicks it aside, it has somehow turned solid gray. It's also very obviously made of rubber.

Continuity: Prince Khufu is holding his seal of office medallion in one hand, showing it to Illya. But in the very next cut, his hands are on his cloak instead and the medallion is again hanging around his neck.

Plot hole: Everyone is suddenly afflicted with a bizarre form of amnesia in this episode. The entire time Solo & Illya are guarding the Russian chairman, they're dealing with language and cultural barriers that shouldn't be there - because no one, including Illya himself, seems to remember the fact that Illya is also Russian.

Plot hole: Koz tells the sick boy's mother that his own son had the same illness. How does he know? There are no visible symptoms, and no one has told him what disease the boy has.

Continuity: When the gunmen storm the rescue mission, they enter through a 3-paned glass door with its glass intact. Cut to an interior shot of them coming in, and the glass is now completely broken out.

Continuity: Illya's shirt tail is hanging out when he heads for the window to use his home-made slingshot, but has tucked itself back in a few shots later, when he climbs out the window.

Continuity: In long shot, the helicopter Solo is flying hovers in a cloudless, clear blue sky. In close-ups of him in the cockpit, however, the sky outside the copter's window-bubble is full of clouds.

Continuity: Illya's shoe converts to an improbable electric drill. He inserts a foot-long drill bit (and just where was he hiding that when the baddies searched him?) into the flat of the heel. But when he starts drilling at the bars, the bit is sticking out of the side of the shoe instead.

Plot hole: Coco asks Illya if he knew she was going to be kidnapped, and he says "At that point, I didn't even know you existed." Strange answer. He and Solo met her outside the observatory several minutes before the kidnapping, so he did know she existed.

Factual error: Betsy orders and picks up the rare drug for Willoby at the pharmacy, without a doctor's prescription and without identifying who it's for. Even in the 1960s, FDA laws weren't that lax. No pharmacist would have filled such an order.

Continuity: Dr. Nillson's suspended animation device is said to freeze only living matter. But when it's accidentally set off and freezes the dancing teenagers, it stops the record player, too. And when the teens are re-animated, so is the music.