Continuity: During the battle in El Salvador, the jar on the chair behind Mike and his friend is shot. Some shots later, the jar has disappeared.

Continuity: When Mike and his friend escape from the helicopters in El Salvador, Mike's hair, clothes and camera are wet just before they pass in the river. They were not wet in the previous shot.

Continuity: When the old woman firebombs the Visitor craft, the scene changes from broad daylight to dusk, and then back to daylight again. The three Visitors standing in front of the 'Valley Cleaners' shop also disappear.

Revealing: When Donovan escapes from the L.A. mothership with Robin and the Mexican, he once turns the fighter he is using upside down by mistake. But since the passengers have their heads hanging down then, how come Robin's long hair does not?

Continuity: When the fake Donovan is trying to rescue Julie, he is shot from behind. But in the next shot, the scorch mark is on his chest.

Revealing: After the failed raid on the Resistance's headquarters, Brian shoots the counterfeiter who led them there, but no scorch mark appears on his victim's shirt (later victims have these scorch marks).

Revealing: During the final battle in the mothership hangar, Donovan shoots a Visitor soldier who falls off his catwalk onto a transporter. When he impacts, a styrofoam block used to cushion his fall bounces off the roof.

Continuity: When the Red Dust is spread, there is a brief shot of some California citizens watching, and we see the Bernsteins among them. But the actress at George Mofogen/Mr. Bernstein's side is not Bonnie Bartlett, who played Mrs. Bernstein in the first two episodes.