Continuity mistake: During Tony and Doug's meeting with Nimon and the Magister, the assistant points his laser gun close to Doug's back, but when the Magister signals to shoot, the assistant is now several paces behind Doug, and there was no time for the assistant to step back.
Continuity mistake: Vokar's assistant brings Tony and Doug into the control room, stopping in front of a dome. The assistant is directly in line with Doug and next to the dome, but the next shot shows the assistant standing further from the dome and towards Doug's left.
Continuity mistake: When Vokar's assistant summons Tony and Doug, they are in a room with very dark walls, but the profile shot of the assistant shows a beige wall behind him.
Continuity mistake: When Tony begins fighting the Union soldier, Tony kicks the soldier's musket out of his hands and it lands to the right. The next overhead shot now shows the musket landed behind the soldier as Tony picks it up to fight another soldier.
Continuity mistake: While Doug is sword fighting with Michaels, Doug knocks off a three-candled candle holder off the table, but the next cut shows it back on the table.
Continuity mistake: When the major hands Doug the musket, Doug is holding it with his right hand, but the next shot shows Doug holding it in front of him with both hands.
Continuity mistake: After the gunpowder in the cave explodes, the same keg of gunpowder is blasted out of position and rolls down twice.
Continuity mistake: The boxes near the wounded sergeant switch positions after Macchiavelli shoots him.
Continuity mistake: Tony's position instantly changes as he tries to kick Doug off the bridge.
Continuity mistake: Arthur ties a rope around the battlements and descends the tower's west wall. Tony then waves a torch to signal the soldiers to attack. He's standing at the same spot Arthur left from (the rope is still tied there), but in the long shot, his torch is waving from the tower's south wall instead of the west one. (00:41:15)
Continuity mistake: In the dungeon where Merlin reminds Doug and Tony they are from the future, Arthur's hands instantly move from by his sides to holding the collar of his tunic.
Continuity mistake: When Arthur has the standoff between himself and Doug and Tony, Doug is standing abreast of Tony in the frontal shots and slightly behind him in the views from the rear angles.
Continuity mistake: At the very end of this episode, when they have just arrived in the new time, Doug is fighting a man in a turban. He loses the turban, but then the next shot, it has reappeared on his head. (00:48:54)
Continuity mistake: The alien freezes Doug and Tony and escapes to the cellar. But when the shot cuts back to the time travelers, they're standing much farther apart and are posed in different positions than they were when first frozen. (00:05:05)
