The episode opens with the hosts, Geoff and Blaineley, introducing the show. After the introduction, Blaineley taunts the non-competing contestants who didn't make it into Total Drama World Tour about the fact that they could not compete, in hopes they would retaliate, only to find out that they really don't care and are in fact enjoying their time away from Chris, Chef, and drama. She also tries to annoy Geoff by bringing up the fact that Alejandro had been flirting with Bridgette. They play a brief game of "Truth or Hammer", and things begin to rapidly fall on Geoff when he keeps insisting he is happy (indicating that he is lying). Then, Geoff and Blaineley reveal that two eliminated contestants are missing.
Duncan and Ezekiel seem to have vanished after their respective eliminations. Duncan was last seen in Africa, though several people have reported and rumored sightings in Scotland and Sweden. The first is a photo of his mohawk coming out of Loch Ness in Scotland. Eva is then shown interviewing the man who took the photo, a stereotypical Scottish man with a strong accent and kilt. Eva is unable to understand what he is saying, leading her to get angry and throw the microphone at the ground. The microphone rebounds and hits the man in the groin, thereby ending the interview. Geoff instantly deems the photo a complete hoax. The second sighting is a video, in which a shadow shaped like Duncan runs through a forest, and he falls off a cliff and swears every time he gets hit on the way down. Blaineley believes that this video may be real because only Duncan would swear like that. Ezekiel is also missing, though hidden cameras on the plane have seen outlines of him for seconds at a time. Ezekiel was seen by Owen to be hanging upside-down on the wing of the plane during a storm. His silhouette is also seen while Chris is in his hot tub, but quickly fades away in the steam. This makes Katie believes that it's a ghost, which frightens Sadie.
Blaineley then goes onto to talk about the other two contestants who were eliminated and attempts to introduce Bridgette. Geoff, upset with Bridgette over her affair with Alejandro, brings out Harold instead. They give a short recap of Harold, which he complains about, saying there is not enough of his "mad skills". Blaineley then shows another recap, which is a series of clips of him stating random facts and then being injured. Blaineley then asks Harold to sing. Justin asks her if she's really gonna make him do that, but she misconstrues it as him asking it to be a new song for The Drama Brothers to perform. Harold asks what about Cody since he's still in the competition, but Blaineley says that it's already taken care of, using Sasquatchanakwa as his replacement. The Drama Brothers then proceed to sing Baby, dedicated to Leshawna. Meanwhile, the girls of the peanut gallery (besides Eva) and Blaineley scream over The Drama Brothers. Geoff calls for security as Beth, Katie, and Sadie get into a catfight while Blaineley faints after screaming over Justin. Geoff then signs off for commercial, wondering if they would even be back.
When they come back from the commercial, Geoff and Blaineley banter before they begin talking about a "riot" that was caused by The Drama Brothers' fans. The band was being chased by "dumb girls" according to Eva, wearing "dumb plaid skirts". Blaineley then attempts to bring Bridgette out again, but Geoff says that "That's Gonna Leave a Mark" should come next. Blaineley asks for Bridgette to come out, but Geoff instead shows a clip of Izzy and Chef fighting that he said was so violent it deserves its own section, much to Blaineley's irritation. Blaineley then demands that Bridgette come out. Bridgette is shown to have locked herself in the green room, only to be coaxed out by Beth. Bridgette is shown to be nervous about being interviewed, especially after cheating on Geoff. Beth convinces her to come out and sing, but she only will if she can do it "her way". Geoff complies.
Bridgette decides to apologize to Geoff by singing I'm Sorry, but Geoff does not fully accept her apology. Blaineley then shows Bridgette's "recap" which is entirely composed of clips of her with Alejandro. Geoff gets frustrated even further. After a video guest asks Bridgette if she would make out with another pole, Bridgette and Geoff start bickering, much to Blaineley's pleasure. Blaineley then declares it a "Total Smackdown", a new segment she came up with that involves the two teens in a boxing arena and preparing to fight each other. They begin the segment, but instead of fighting, they end up making out. Blaineley gets incredibly frustrated and quits the show, while Beth flirts with the pole. Eva then angrily signs off the show by singing "because they told her to". She, however, gets angry and yells "Aw, forget this!" and kicks one of the stage props offset.
It is revealed that Trent was kidnapped by the fangirls and is tied on the front of their school bus with his guitar. As the bus drives away from the Aftermath studio, Trent goes on about the Drama Brothers might not be reuniting soon due to "artistic differences", and also about the hardships of being famous. However, he adds that he won't be the kind of celebrity that complains about the fans. Trent then starts playing his guitar and sings as the bus then crashes into something off-screen.
|Clé Bennett||Chef Hatchet|
|Stephanie Anne Mills||Katie|
- Alejandro, Chris, Cody, DJ, Duncan, Ezekiel, Heather, Leshawna, Lindsay, Noah, Owen, and Tyler appear in videos, but they do not speak. Duncan swears in a video, but is bleeped out, while Owen gasps when he sees Ezekiel, but he does not speak.
- Hamish MacTavish and Willy have lines; however, it is unknown who voiced them.
- The janitor and two interns appear; however, they have no lines.
- This episode was released on iTunes before it was released on the Cartoon Network site on August 2, 2010.
- On Cartoon Network's Total Drama World Tour website, the name of the episode is "Aftermath: That's Gonna Leave a Mark".
- This is the fifth episode in the series to reference a character's name in the title, with the others being The Chefshank Redemption, Super Hero-ld, Crouching Courtney, Hidden Owen, 2008: A Space Owen, and later on The Treasure Island of Dr. McLean, Grand Chef Auto, Zeek And Ye Shall Find, Scarlett Fever, and Sky Fall.
- The two cameo appearances of Ezekiel in this episode are two of the only three in which someone else actually sees him; in this case, both Owen and Chris see him.
- In Harold's recap, he explains how 111,111,111 times 111,111,111 equals 12,345,678,987,654,321, and that this is a numerical palindrome, meaning the number is the same when read backwards.
- The "Truth or Hammer" segment is seen to change multiple times throughout the episode. First, a hammer swings down. Then, as Geoff starts lying multiple times, an anvil falls, followed by a safe and a grand piano. Then, when Bridgette plays the game, it changes to its largest and most outrageous form yet: "Truth or Tractor Trailer".
- The two interns/security guards in this episode are both wearing color-swapped versions of Chris's outfit with shorts.
- As Blaineley is being dragged off of the stage at the end of the episode, she states that she wants her old job back, hinting that she lost her Celebrity Manhunt job. This is later confirmed in the next aftermath, when Bridgette asked Geoff if she was going back to Celebrity Manhunt, Geoff replies with, "She tried, they said no".
- Every camper whom Harold interacts with (in the flashback) was a Screaming Gopher.
- In this episode, the commentators that competed in one season are on the bottom couch and the commentators that competed in two seasons are on the top.
- The girl that the Drama Machine mistook for Duncan is a recolor of the woman in the airport seen in The Aftermath: IV and Celebrity Manhunt's Total Drama Action Reunion Special, as well as the woman who wanted to use The Drama Brother's new album case.
- Trent calls Duncan an idiot for quitting the season and throwing the chance for the million dollars. Ironically, Trent had been throwing challenges for Gwen's team in the previous season, which not only makes him lose the chance to win the prize money, but also his and Gwen's subsequent eliminations.
- This is the only episode in Total Drama World Tour where Katie, Eva, and Justin have any lines.
- This is the only Total Drama World Tour Aftermath episode that doesn't affect the outcome of the game.
- This is the first and only aftermath episode in which every commentator speaks.
- This marks the first and only time Eva attempts to sing in any episode of Total Drama.
- Bridgette breaks the fourth wall in this episode, when she pushes aside a split screen during her song.
- This is the only aftermath Izzy did not appear in person.
- This is the first Aftermath that isn't numbered, unlike the Total Drama Action Aftermaths. This trend continues for the rest of the Aftermaths.
- This is the first episode in the Total Drama series that is aired online, instead of on television. However, this is only true for the United States, as the Total Drama World Tour aftermaths all aired online rather than on television.
- However, during season recaps in the future, the episodes were aired.
- This is the first episode to feature two songs without either being a reprise.
- This is the first aftermath episode in which Harold is interviewed, as he was never interviewed after his elimination last season.
- This is also the first time Bridgette is interviewed, since she was eliminated first last season, and took the role of host before being technically interviewed. This makes Geoff, Beth, Duncan, Lindsay, Justin, and Courtney the only people to compete in Total Drama Action, but not get an interview on the Aftermath.
- This is the last aftermath in which the guests are interviewed in.
- This marks the first episode that Bridgette changes her hair out of her trademark ponytail.
- Bridgette's song was the first song that a contestant wasn't forced to sing.
- This is the second aftermath to feature a video of Izzy attacking Chef Hatchet. The first one was in The Aftermath: I.
- This is the second aftermath to not have a contestant return or join the game in the next episode.
- This is the first aftermath where Cody, Ezekiel, Izzy, Noah, and Tyler aren't present in person.
- Bridgette's scenario in this episode is similar to what her friend, Gwen needs to face in The Aftermath: II in which both girls have to apologize to their love interest (or in Gwen's case, former love interest) for all that has happened.
- Bridgette cheated on Geoff with Alejandro.
- Gwen told the Killer Grips to vote Trent off.
- This is the second episode in Total Drama World Tour to have more than one song, the others being Walk Like An Egyptian - Part 2, Aftermath: Revenge of the Telethon and Hawaiian Style.
- It can be assumed at least two of these clips were taken prior to Not Quite Famous with Justin still on the island, while one must take place prior to Dodgebrawl due to the appearance of Noah
- This episode title is a reference to the classic song Bridge Over Troubled Water by Simon & Garfunkel.
- The scene in which Owen spots Ezekiel on the plane's wing resembles a similar scene in a famous episode of The Twilight Zone called "Nightmare At 20,000 Feet", in which a man sees a gremlin on an airplane's wing in the middle of a storm, which then suddenly and inexplicably vanishes.
- The first photo of Duncan is a spoof of the famous "Surgeon's Photo" of the Loch Ness Monster, which was revealed to be a hoax. The second is a loose parody of the famous Patterson-Gimlin Bigfoot film, which was never proven fake.
- Geoff says that Duncan was the first to quit Total Drama, but DJ quit in Total Drama Action.
- Eva's mole is on the wrong side in the first part of the episode.
- Beth is sitting next to Katie and Sadie when Geoff and Bridgette are kissing. Yet, when Bridgette says that Geoff is better than that pole, Beth is suddenly in the green room with the pole.
- Harold was present during Bridgette's song, however he was chased down by girls in a yellow school bus with Justin and Trent.
- Justin was also seen present as Bridgette and Geoff were making out. When the camera slides over to Beth, Katie, and Sadie, Justin's arm can be seen behind them.
- There are several errors during Harold's montage, assuming these videos take place in Camp Wawanakwa during the time of Total Drama Island:
- Heather has her short ponytail instead of her original long hair or her bald head.
- Similarly, Beth is seen without her braces.
- Bridgette is in her dress before her montage started, yet after the montage, she is in her normal clothing. The montage was too short for her to go back to the dressing room, change, and then get back on stage.
- At one point during his battle with Izzy, the gap between Chef's teeth is missing.
- There are numerous instances throughout the show where the buttons on Beth's shirt are on the wrong side:
- When Beth asks "Chris is looking for Duncan?"
- During Bridgette's song, when Geoff says "In front of all my friends".
- Where they notice that Geoff and Bridgette have started to kiss.
- When the screen shows the tractor-trailer waving above Bridgette's head.
- When Trent and Justin are singing with Leshawna's face in the background, her mole is on the wrong side.
- Geoff says that a video is captured when Duncan was in the lake, yet it is a picture.
- When Alejandro is hit in the face by a pipe in "That's Gonna Leave a Mark!", the pipe overlaps his hands despite his arms being straight out.
- The clip shows that Harold is not wearing a parachute during his Drop of Shame. However, in the exclusive clip of Super Happy Crazy Fun Time Japan as well as the recap of in the next episode, he is wearing one.