"My sister skipped a grade" tells the story of all the big brothers whose parents have ordered them to "take their little brothers" with them a second before they leave the house - and the story of the little brothers who were dragged after the big ones for their adventures. Age differences, mentality, and ways to bridge this gap. So what's more important at school: good friends or good grades? Concentrating on your studies or making sure you match colors? Sometimes, as the sisters discover, the answers are actually in the middle.

The Series tells the story of two sisters – teenager Michal (Mia Bakowski) and her little sister Ronnie (Bar Minialy), who skipped two classes and now attends high school with her. And not only is her nerdy, cool little sister in her class, now her mom (Tali Oren) also works at her school as a substitute teacher! Luckily Michal doesn't have much time to deal with this, because this season there is a real chance that she and Dishi (teenage start Omer Hazan) will be together - if they manage to survive their first date... The new episodes also feature new and surprising guest stars, including Kim Or Azulay, Noa Cohen, Itay Herman (real life quiz show genius) and Maya Wertheimer.

The new season, the longest yet with 16 episodes, will continue to follow Michal (Maya Bakowski) who has to deal with the presence of her younger genius and proud sister (Bar Minialy) in the same high school classroom as her. What can we expect? We can't tell you everything in advance, but we can tell you that: her mom (Tali Oren) makes the two girls share a room; Ronnie finds a new love (!!!); Michal is promoted to shift manager at the café (this way she can cause less damage) and she picks Dishi (hearthrob Omer Hazan) to work with her as a waiter. Koby (Amit Moreshet) loses his coat and becomes a nice guy! (But don't worry, it'll pass). The season also includes a special episode featuring the members of the Formula Band playing themselves and performing together with the actresses a song written especially for the show.