In an effort to befriend the Populars, August tells them that his dog, September, is able to talk. When he says "bow", the Populars laugh, but then he corrects the Populars and commands them to bow down to him, shocking them all.
The Populars play the old your shoe's untied prank on the Off-Beats, but it only works on Repunzil, who then asks Grubby Groo to tie her shoes for her.
Betty Anne finds a twig and tries to save it with the "help" of Rapunzel. It does not work and they ask Tommy for advice. He suggests they leave it alone (his yelling also killed the twig even more) and then August and September use it for a game of fetch (which is played the other way around).
Because September takes a day off from being August's dog, he orders a new robotic dog, which "plays 4-ever." This soon bores August, and September begins to get jealous. So September obtains a Roboboy, which also "plays 4-ever," which causes the Robodog to leave August and befriend the Roboboy instead.
August takes a ride in his new invention, the heli-cart, and September refuses to go with him. As he does this, everyone tries to talk with him or play with him, driving him insane.
When Betty Anne Bongo loses her glasses after playing her bongos, the Populars find them and Tina puts them on to mimic her. They hide them from the Off-Beats, who are unaware of this, and then September figures it out and devises a plan to get them back.
When Tommy has his coat sent to be dry-cleaned, he begins to slowly go insane because he misses his prized possession. Betty Anne tries to help him. He even hallucinates the Populars having the same color pattern as the coat!
August wants to be friends with the Populars, so he uses his Suave-O-Matic, which results in him getting taller and cooler with a deeper voice. The Populars befriend the new August, and all goes well until he decides to play paddleball, which causes the Suave-O-Matic to explode.
Tommy hears a song on the radio and gets it stuck in his head, and he can not stop singing it, so Betty Anne tries to help him out. He is even able to scare away the Populars with his song because the song is now stuck in their heads. Once they finally helped him, Repunzil arrives with the song stuck in her head, which gets to the Off-Beats as well.
Repunzil gets an entry form in the mail for sweepstakes with a million-dollar prize. She believes she is going to win, and the Populars befriend her in hopes she will buy stuff for them.
After Playing Her Bongos, Betty Anne sprains her wrist, and despite all the attention she is getting, she is depressed because she cannot play her bongos. The Populars are jealous of the huge Junkyard Sundae Grubby Groo makes for her, and try to fake being injured so they can also get a sundae.
When August is too busy trying to break a paddleball record, September goes off to party but realizes he cannot open his can of dog food, so he is incredibly hungry. Thankfully, August sees this and feeds his dog in time.
When the gang hears from September about the probability that a person in a group of four would be conked on the head by something falling from the sky, Tommy tries to leave the group because he seems to be the target.
Tommy of the Off-Beats and Beth of the Populars develop a crush on each other. September also reminisces about a female cat named February he was in love with. Repunzil tries to get September a new crush, and tries to give an escaping Tommy a valentine gift, and August tries to figure out how to get a girlfriend without the use of technology.