Continuity mistake: When "Uncle Chin" introduces himself to Grace, the kid's pigtails move from the front to the back of her shoulder, back and forth between shots. (00:01:05)
Continuity mistake: When Danno talks about tennis and is interrupted by his daughter he tells her "You're supposed to be paying attention" with the foam hand at the side of her head, which disappears at the cut. (00:01:40)
Continuity mistake: Danny and Grace get up to go buy some nachos; at the cut, both Chin and Steve's hands have changed position. (00:01:55)
Continuity mistake: After the opening, Kono check out of the unidentified victim. In close-up his torso is fuly covered, in the wider shot his jacket is open showing bare skin between jacket and wifebeater. (00:04:55)
Continuity mistake: At the pizza place, there's a remote in front of the owner when the two detectives arrive. Nobody touches it, but when Scott Caan grabs it, it is in a different spot of the table. (00:20:10)
Continuity mistake: When Danny and Steve leave Joey in the shark cage, he looks at them panicked grabbing the side with the ladder, but when they take off, he's clinging to the opposite side of the cage. (00:22:35)
Continuity mistake: Kono just entered the casino posing as waitress-entertainer. She is snooping around and a guy promptly shoos her back with the others. She does a sassy lil' move with her right hand...but it's the left hand at the cut. (00:28:25)
Continuity mistake: Kono and Danny do a bit of theatrics distracting Frank Salvo and his men that are about to waste cousin Sid. The henchman behind the Samoan gang member is not touching him in the wide shot, but has both hands on his shoulders in the closer cut. (00:34:15)
Continuity mistake: Watching the old football game, when number 5-O gets tackled, Kono takes a handful of popcorn that she already took in the previous shoot (a close-up on Scott Caan). (00:39:15)
Continuity mistake: Inside Steve's office, Mary says that she would have taken anything from their dad, even disappointment,"because at least it would have been something." In that close-up, her hair is noticeably different than in the rest of the scene, much thinner over the shoulders. (00:19:45)
Continuity mistake: Steve and Danny sit at the diner's where they need to meet with the fugitive's girlfriend. As Danny gives Steve the speech about the "mammal to mammal" interactions he puts his toothpick in his mouth, but it vanishes in the front view, only to be plucked back at the beginning of the next shot. (00:22:35)
Continuity mistake: In the long bickering with Steve while they kinda talk with Sofia, Danny picks up the badge the Steve put on the table, put it down before the cut talking about bad relationship decisions, but in the next shot he's gesturing again with the badge. (00:23:10)
Ko'olauloa - S1-E6
Continuity mistake: At the end of the episode, the surfers are in the bay to spread Ian's ashes. Ben lets go of Kono's hand and is handed the urn with the ashes by the man to his right. He removes the lid of the urn and hands only the lid back. Yet in the overhead shot immediately following, the urn is back on the board of the man to Ben's right, and there is nothing on Ben's board. He's holding Kono's hand again. In the next shot, he is tipping the ashes from the urn.
