Audio problem: When Lex talks to Clark, Clark clicks his flashlight on, and you hear the click signifying he has turned it on. But in the next shot, the flashlight is now off, without another click sound heard to signify that the flashlight was turned off.

Continuity: When Martha Kent and Lana were talking about the meteor shower in the Talon Relief Center they sit down on the stairs. Lana puts both her hands on her knees. But in the next shot now her arms are outstretched in front of her, and now it's her elbows which are on her knees.

Continuity: When Clark and Lex are searching for Clark's dad, right after Clark gets mad at Lex and leaves it shows a head shot of Lex with the bandage over his left eye. In the beginning of the show he was injured over his right eye. (Time)

Continuity: When Clark, Pete and Chloe were looking for Clark's father in the woods, Pete says: 'the twister must have dropped it here' and we see Chloe holding the map in her right hand. Cut to a different angle (as Clark runs towards the screen) and in the background we see Chloe holding the map with her left hand instead.

Plot hole: When Nixon and Jonathan are trapped in the crypt after the landslide, Nixon says he can't breathe, and Jonathan says this is because the landslide cut off the air supply. However, we can see beams of sunlight shining in. So, unless the ceiling of the crypt is made of airtight glass, that landslide didn't cut off the entire air supply.

Continuity: When Clark, Pete and Chloe were searching for Clark's father in the woods, they stumble upon a motor home dropped by the tornado. Chloe then picks up a Nixon's camera and looks at it. Cut to Nixon and Jonathan Kent then back to a wide shot as we see Chloe throwing the camera down onto the ground. Clark then uses his X-ray vision once again. Cut back to a wider angle (as they walk away) yet we see Chloe throw down the camera once again.

Continuity: When Clark brings Lana to the hospital, a doctor attends to her and checks her vitals. In a close up we see the doctors right hand on Lana's neck checking her pulse and her left hand is no where in sight. Cut to a wider angle (as Clark runs away) but now the doctor is holding a flashlight in her right hand and her left hand is on Lana's forehead.

Continuity: Nixon raises the bar to kill Jonathan with a ridged side up, but when he is shot he is holding the smooth side up. (Time)