Axl believes the New Year already sucks. This declaration comes on January 1st just a few seconds after midnight Orson time. No one in Frankie's family ever sticks to their New Year's resolutions, so she wants all declarations for change to be assigned by others. If the kids comply for a week, they get a trip to King Henry's all-you-can-eat smorgasbord at the mall. Deal!
The resolutions are challenging. Axl is to clean up his filth-hole of a room. Brick is to stop reading all the time. Sue must stop trying out for things. Mike has to smile more. As for Frankie, she needs to spend more time with Brick.
Sue's ex Brad has joined the wrestling team. This inspires her to form a cheerleading squad of Wrestlerettes. Four girls show up at tryouts for her squad. Two of the girls who show up to be on Sue's squad quit immediately once they realize that practices take place while Phineas and Ferb is on. Another young lady bails for religious reasons.
Sue convinces Weird Ashley (the girl Axl took to prom) to rejoin the squad by promising to have practices at her house while her brother is around. The other girls also reconsider. Just like that, Sue went from "anonymous nobody" to "anonymous head Wrestlerette." Too bad no one in the stands can see the wrestling match as her squad stands in front of the mat.
While cleaning his room, Axl comes across a fifth grade English paper that he never turned in. If he would have given it to the teacher, he would have received his very first A. He turns in his essay six years late to his former teacher, who grills him on the different spellings and usages of "there," "they're" and "their." She eventually gives him the grade he seeks. There you have it. Or is it "their" you have it?