It's first day of school, and Yoni the History teacher is sure today he'll be appointed the new principal. Surprisingly, someone else is appointed, leading to him signing a contract with the devil, who promises to make him the principal.
Yoni realizes that he must enroll Satan's son, Bencifer, in school, so he decides to introduce him as "Benz", his nephew. Benz tries to graduate that same day using his powers.
Benz is looking for new friends on Earth. Yuli decides to help and throw a party in his honor, but doesn't invite him and the "odd ones", and Benz connects with them. The principal removes Yoni from the position of School Safety Officer.
Yoni assigns the class homework because Benz is disrupting class, so Benz creates an evil, mustachioed clone of Yoni who cancels the homework and the lesson, and makes Benz the most popular student in school.
Benz summons Goliath from Hell to prove to Yoni he isn't that tall, but before he is able to return him to Hell, Goliath escapes, joins the High School basketball team, and becomes MVP in a game against "Golda's Hot Dogs" High School.
Yoni wants to beat Tomy in the election for the position of deputy principal and appoints Yuli and Lital as his campaign managers, but they say he can only win through fake news. Benz tries to prove Neta he is better at physics than her.
Yuli announces she's going to reveal a secret of someone. Yoni thinks the secret is Bentz's dad. Benz enlists the help of Neta, trying to find out what the secret is, but along the way insults her by saying they can never be a couple.
Benz is mad with Satan's visits to Earth, but when he tells him he wants some freedom and privacy, the devil takes it very hard. Yoni tries to help Si-Gal with the vice-principal celebration, but gets her into trouble with the principal.
Benz tries to help Neta and Nitzan solve a mystery and find out why their parents have been fighting for 20 years. Gery, "Golda's Hot Dogs"'s principle and Vered's greatest enemy comes to Parent teacher conference instead of Yuli's mom.
Nizan tries helping Alex getting over his speech anxiety and performing at the school's Got Talent. Neta decides to perform with her neighbor Yam from 12th grade, and their bond makes Benz jealous.
As part of their social engagement, Benz, Neta, and Olaf try to get accepted to the MDA, while the other kids are looking for an easy job at the library. Yoni competes at the "Teach-lympics Qualification" and tries to get closer to Si-Gal.
Yam consults with Benz about a birthday present for Neta and Benz makes him bring a lousy gift so he can bring a more impressive one. Yoni tries to ask Si-Gal out on a date, And Yuli's deputies rebel against her and fire her.
When Haman hears from Satan the favorite Purim dish is called "Haman's Ears," he decides to come to Ness Ziona and take revenge. Benz breaks Alex out of their duo costume and dresses up with Neta instead.
Yoni buys the management book written by Vered, but he realizes he can't make any decisions without consulting it first. Benz becomes addicted to online shopping using Alex's grandmother's credit card, and Yuli tries to get with Yam.
Gery tries to lure Yoni to work at "Golda's Hot Dogs" High School using a song, and thus fail "Begirionit"'s students in the history Graduations. Olaf escapes from the immigration police and finds refuge in the underground fuel station.
Yoni organizes a romantic Saturday dinner with Si-Gal, so he can confess his feelings for her, but when Tommy and the devil also arrive at the apartment, all of Yoni's plans go awry. Benz does his Biology homework about squirrels.
The school play Romeo and Juliet and causes a fight between the theater students and Benz's friends. Vered forces Yoni to conduct a science experiment in front of the Ministry of Education inspectors, although he knows nothing of the topic
Benz is stressed about his history exam and makes an apple that contains all human knowledge, but Lital eats it by mistake, and becomes the smartest person to ever live. Yoni gets sick and causes Vered to put the school on lock down.
Satan is on trial in Heaven Because Lital ate Benz's apple. He is removed from his position until the end of the proceedings. Polly, Satan's brother, comes to visit Benz on Earth and brings with him Benz's partner from Hell, Libby .
Benz and Yoni are trying to prevent Satan from being removed from his position. Meanwhile, Benz's classmates are taking their history exams and discover that someone has been hiding all the exams, and they are all about to fail.
