The boys are assigned to parent an egg for science class but Wyatt is forced to take matters into his own hands when Crash takes things too far and becomes obsessed with his egg. Meanwhile, Mel attempts to help Cleo master a sport so that she can pass P.E.
Wyatt, Crash and Pesto are set to face-off against Cleo's team in the school's big cup stacking competition. Things look good for Wyatt, until he has to rally his squad as Amanda distracts Pesto and Crash becomes obsessed with a toxic trash heap.
Amanda pulls a sneaky prank on Cleo and Pesto, leading Cleo to team up with Pesto to seek prank vengeance. When Amanda learns of the revenge prank, she recruits Pesto for a preemptive strike on Cleo, and Pesto gets caught in the middle of a prank war between the girls. Meanwhile, Crash and Wyatt are mistakenly invited to join a fraternity on campus, but Wyatt has to come to Crash's rescue when the frat boys attempt to brainwash Crash to do their bidding.
When Wyatt's father Karl Bernstein returns from his globetrotting adventures as a wildlife photographer, Crash and Karl compete for Wyatt's time and attention leading to a battle of one-upmanship that results in the destruction of Wyatt's school project.
As Hanukkah approaches, the Bernstein family teaches Crash the traditions of the holiday and explains that different cultures celebrate various holidays in many ways. Seizing the opportunity to make this holiday season their own, Crash and Wyatt create a new holiday that incorporates traditional elements and Crash's crazy antics.
Crash and Wyatt are grounded while Mel takes the girls out for the day. Jasmine is accidentally left behind and witnesses Crash and Wyatt destroying one of Mel's things. The guys spend the rest of the day trying to please Jasmine, so she won't tattle on them.