Ulrich and Jeremy are doing graffiti on a wall on campus while Kiwi wakes up Jim. When Jim passes Ulrich and Jeremy, Ulrich gets away, but Jeremy just stays there and gets I'm trouble and has to stay in the campus over vacation. Sissy is being suspicious of Jeremy and thinks that he wanted to get in trouble. She asks her father to stay over the campus over her vacation, while she sorta spies on Jeremy. Jim is telling Jeremy to wash off the graffiti, then leaves while Jeremy gives Sissy the sponge and tells her (while mimicking Jim) to wash off the paint and later once again gets in trouble with Jeremy.

Meanwhile, Xana has attacked again, this time spilling two toxic chemicals creating hazardous smoke. Sissy claims that she saw the smoke with arms and bumps into Jim who later finds the smoke after not believing in Jeremy and go into a small room where there is no vent and if they try to open the door, they can die. How will Yumi, Aelita, and Odd save the world and how will Ulrick find

En Jeremy, que preveu un possible atac del XANA, s'ho ha manegat perquè el castiguin a quedar-se al col·legi durant les vacances. La Sissi, que sospita que en Jeremy amaga algun secret, també se les ha enginyat per passar les vacances a l'escola. El gas tòxic no trigarà a aparèixer...

Ulrich 和 Jeremie 正在校园的墙上涂鸦，而 Kiwi 吵醒了 Jim，结果惹上了麻烦，不得不在校园里过假期。与此同时，Xana 又发动了攻击，这次她洒出了两种有毒化学品，产生了有害烟雾。Yumi、Aelita 和 Odd 将如何拯救世界...

Ulrich 和 Jeremie 正在校园的墙上涂鸦，而 Kiwi 吵醒了 Jim，结果惹上了麻烦，不得不在校园里过假期。与此同时，Xana 又发动了攻击，这次她洒出了两种有毒化学品，产生了有害烟雾。Yumi、Aelita 和 Odd 将如何拯救世界...

Jérémie a trouvé le moyen de se faire coller pendant les vacances scolaires pour être là au cas où XANA déciderait de lancer une nouvelle attaque.

Si avvicinano le vacanze e, per evitare che il supercomputer resti incustodito, Jeremy si fa mettere di proposito in punizione prendendosi la colpa di un murale dedicato a Jim, il professore di ginnastica. L'espediente si rivela provvidenziale, perché di lì a breve XANA sferra un nuovo attacco, che mette in pericolo in particolare Ulrich, Sissi e lo stesso Jim.

Jeremy skaffer seg husarrest i hele skoleferien i tilfelle supercomputeren X.A.N.A. angriper i ferien. Sissi blir også på Skolen i ferien. X.A.N.A klarer å spre giftgass over skolen, og det oppstår en farlig situasjon for Jim og Sissi som er på et lite rom! Jeremy kaller på hjelp fra Yumi, Odd og Ulrich, vil de rekke tilbake til skolen i tide?

Zbliżają się tygodniowe ferie, jednak nie dla Jeremi'ego. Dle niego szykuje się długa praca przy czyszczeniu muru za namalowanie na nim pięknego portretu Jim'a, o którym raczej wolałby nie mówić.

Para evitar a ameaça de um ataque iminente do XANA, não há nada melhor do que ficar de castigo durante as férias.

Jérémie ha encontrado una manera de quedarse atrapado durante las vacaciones escolares para estar allí en caso de que XANA decidiera lanzar un nuevo ataque.