Grojband and The Newmans got into a battle of the bands in this episode. Kin and Kon were seen in great shock when they realized that they would be going up against them. Grojband and The Newmans both got into a burn battle at the beginning of the episode. Carrie told Corey that his band had no chances of winning the Scary Song Competition and that her band had already won two years in a row. Corey told her that her song was going to be a failure and that his song was going to "toast hers like a marshmallow." Carrie finished off the burn battle by telling Corey to imagine that the worst burn of his life got sent to him twice. Not only Corey was intimidated, but Kin and Laney also expressed anger toward them. When Carrie said that Grojband had never won a single competition, Kin pointed sand said that the only reason for that was because they never tried to do so in the first place. Laney also said that she wanted to crush them in the competition after they lost the burn battle. Later in the episode, Grojband was seen spying on The Newmans while they were practicing. Kin said that even their sound check was enough to make kids wet the bed. In the competition, they had their band battle. Grojband played a song which struck fear in The Newman. The band battle ended in Grojband winning by having Blade Stabbington throw Bitefce at The Newmans, making them scream and run away in fear.
Grojband was jealous of The Newmans for having a gig booked at Slugfest while they were sitting at home doing nothing and so they solved this by turning their performance into a band battle with themselves. While prepping for their band battle, Grojband ran into another band battle with The Orb Experience. The Orb Experience possessed the bodies of The Newmans and played a song in their bodies during the band battle. When Corey found out that The Orb Experience had possessed their bodies, he freaked out, and described The Newmans as their "worst enemies." The song sang by The Orbs in was so bad, that they lost the band battle while Grojband won. After this, The Orbs left, leaving The Newmans sleeping in the floor.
During Corey and Trina's wish war, Trina decided to annoy Corey by wishing for The Newmans to become "the biggest band in the world", Corey screams in terror before realizing the wish was granted literally and the Newmans became giants. Carrie is happy to say that The Newmans have become bigger than Grojband and so are the rest of them as they are all seen happily laughing. Corey is seen watching in anguish and then angrily wishes for The Newmans to "go to the mall" causing them walk to the mall and crush it. During the song, Corey wishes for all of the wished to be undone. One of which is for The Newmans to go back to their normal sizes again. The Newmans are all shocked when they shrink and they get painfully crushed under a giant hat when they go back to normal again.
The Newmans were practicing their music in the park. Corey's guitar came by and attacked The Newman, making them scream and fly up into he air. Corey laughed and said that he was okay with his guitar doing that because of the fact that he hated them.
Trina decided to annoy Corey by having The Newmans play music on stage. Grojband, under the control of the bracelets, were really happy to see them on stage. Kin said that usually, they'd hate them but as for now, they rocked. Corey suggested that they all have fun listening to their music and the band all ran with each other, holding hands and skipping to their song. When the song finished, Grojband was about to clap for them. However, Corey gained self control and was able to resist doing so as he said that clapping for them felt so wrong. Before his hands could touch, he tore his bracelet off with his teeth and bit the bracelets off of the rest of the band too, helping them regain their consciousness.1 + 1, which they perform together as the Grojmans. They were all looking at each other with very happy looks as though they were very into singing with each other. However, Corey and Carrie's lyrics of the song were completely different. Carrie's seemed to resemble how happy she was being stuck to Corey and how she enjoyed sharing his body with him. When on the other hand, Corey's lyrics expressed his hatred for Carrie and showed that Carrie made him want to throw up. They get de-fused again at the end of the at it is unknown if whether their friends or enemies because this is the last episode where they interacted.