Continuity: In the scene where we first see Phoebe and Cole when she's about to leave the apartment you see she is wearing gold and white high heels but as soon as she reaches the elevator shes wearing black boots actually to be more specific they're Uggs, a type of boot.

Revealing: In the teaser, when Leo levitates to hang a picture, he has a major wedgie and the ankles of his pants hike up to mid-shin due to the harness that is used for the levitation effect.

Continuity: In the scene where Agent Jackman shows them the file he has on them in their dining room, Paige's left dress strap has fallen off her shoulder in some shots, but in others it's perfectly in place.

Plot hole: In this episode, when Piper and Leo are preparing the nursery, Leo tells Piper he has been watching her her whole life, and she says "That's a little bit creepy". she acts as if she doesn't already know this but in episode 2-22 'Be Careful What You Witch For' Piper says, "You have been watching me my entire life".

Plot hole: Paige says she cannot wait to tell the local witch doctors that Borneo demons are not impervious to magical powers. But in the episode 'House Call', they act as if they have never heard of witch doctors, let alone dealt with them.

Plot hole: The Sea Hag says at the start of the episode to Mylie that as an immortal being, only she can place the augur shell over her heart to give up her life. But at the end of the episode Necron magically places the shell onto Phoebe and it nearly sucks the life out of her.

Revealing: When Phoebe goes to sign her papers at the end, she spells her name as Pheobe.

Revealing: When Piper blows up the painting you can see the hole used to put the charge into to blow it up.

Continuity: When Adam spills coffee all over Phoebe's top in the office, the stain disappears and reappears between shots.

Continuity: After Piper puts Little Red Riding Hood's cloak on and travels into the book we see a close up of the book and the cloak is still lying behind it.

Other: If all the objects in the fortress are originals from the fairy tales, why are the ruby slippers red? In the original story the slippers were silver, they were made red for the MGM movie, so they would be the brightest thing on the screen.

Factual error: When the siren gets the pole that was speared through her pulled out, there is only blood in the middle part of the pole. If it had really been pulled out of her, it would be bloody all the way along.

Revealing: When the Siren is being healed, you can see that she's just holding the pole next to her, when it's supposed to be going straight through her.

Continuity: When Piper and Paige fall out the window and land in the dumpster, in the wide shot the garbage bags are white, and in the close-up they're blue.

Continuity: When Leo and Ramus are talking in front of the bay windows, the door behind Ramus switches from closed in the wide shots to open in the close-ups.

Continuity: In the scene where Phoebe dangles the slumlord from the roof, the TransAmerica Pyramid can be seen behind Phoebe and Cole. A subsequent shot, after Phoebe tosses the slumlord back onto the roof, is take from the opposite side, but the TransAmerica Pyramid is still behind them, and is much closer.

Continuity: Just after 'the Aggressor' tears the picture of the girls, they all change back to their normal clothes, however in one shot, Paige's arm is visible and she is still wearing her costume.

Continuity: The drawings of the sisters, change from when they were in the book, to when the Aggressor tore the paper.

Continuity: When Paige is telling the others she thinks Lydia is the one Cree was after, she says 'I think Lydia was the one who summoned that dust storm', but none of the sisters were present when the dust storm was summoned. They only arrived afterwards.

Continuity: Lydia has green eyes, but when Orin extracts them at the morgue, the eyes he puts into his head are blue.