As part of a special test, the school has brought the students to an uninhabited tropical island where they must now live for a week. Their performance on the test can have an enormous impact on the point standings of the four classes.
There are hidden sensors 
and a GPS built into them.
توجد حسّاسات مخفية و"جي بي إس" داخلها
Es ist mit verschiedenen Sensoren
und GPS ausgestattet,
Tiene sensores y un GPS integrado.
Tiene sensores y un GPS integrado.
Chaque appareil contient
un capteur et un GPS.
Sono dotati di sensori e GPS.
Tem sensores e GPS nela.
В них спрятаны сенсоры и GPS-маячок.