Dome Grown

S1, E17: To surprise Headmaster Crane when he arrives the next day, Eagle and friends are creating a garden under a glass dome on the Mars campus. But thanks to an accident while they’re playing near Coot’s workshop yard during their break, our heroes are relegated to clean-up duty and must collect mounds of junk from upended trash bins. When they finally get back to the garden, they’re shocked to discover the vegetation drooping and wilting miserably. What went wrong?? The cadets launch an urgent investigation to figure out why the plants are failing, and to try to rescue them before Crane can see. Starting from the premise that these same plants would have thrived on Earth, they set about comparing the differences between Mars and Earth, hoping that will lead them to the answer.