Nikki worries she will have motion sickness at space camp.
Nikki and Mike try to prevent a student's rash experiment.
Tony's lagging interest in science is rekindled.
Mike is jealous when Nikki is accepted into space camp.
On holiday, Nikki finds a penguin in an oil slick.
A student, learning she was adopted, seeks her real mother.
Maggie sees a new star, but then it disappears.
A visiting student uses intuition to find an ancient cave.
Hero Tony is offered celebrity on American television.
Damage to the space shuttle endangers Tony.
Nikki discovers a comet; Tony leaves for the space shuttle mission.
Maggie protests the planned cutting of her favorite tree.
After strange lights appear, Maggie thinks Giles is an alien.
Mike is involved in an interschool rocket competition.
An old boyfriend offers Marie a research job.
Nikki cannot afford software she needs to illustrate her project.
Another student steals Nikki's research on Jupiter.
The wreck of Mike's mother's plane is found in the lake.
A visiting student seeks signs of extraterrestrial intelligence.
A turn-of-the-century bushranger's hideout is now under a lake.
Mike plans a kiss with Nikki while waiting for the Southern Lights.
No one believes Maggie when she hears a distress call.
Tony, camping by himself, gets stuck.
Mike's new horse gets spooked and throws him.
A meteorite lands in a scrap-metal yard.
Mike decides to go roller-skating on the dish.