A student in need of money to buy a car, steals a device from Andrea that creates an impenetrable force field and sells it to a local crime boss. Isis goes in pursuit when she discovers the device has developed a dangerous radioactive leak.
One of Andrea's students uses a geology field trip to avoid the chores his father assigned to him. Isis, and a foreign exchange student, teach him the meaning of responsibility.
Someone, or something, huge is living in seclusion in the local mountains, and some of the students think it's the legendary monster "Bigfoot". Isis investigates.
Tom, one of Rick's students, has trouble making friends, so to impress a new acquaintance, he shows him his dad's war souvenir handgun, which the new guy steals from Tom.
Wayne is a new student at school who is described by the other students as a "hillbilly." Some boys who do not like Wayne plan to steal a rival school's raccoon mascot and frame Wayne as the thief. Wayne also gets in trouble for trying to stop the building of some houses in woods where some animals live.
Fred takes his runner-up finish in the Science Fair badly, and rushes off and almost drives his car off a cliff. After the near-accident, Andrea, Fred, and Dorothy drive to a ghost town, which is "haunted" by a trio of thieves using it as a hideout.
A overweight girl with low self-esteem steals Mr. Mason's boat for a publicity stunt and gets in so much danger that Isis has to call on superhero Captain Marvel to assist her.
During a safety driving competition between boy and a beautiful girl, the boy cheats which eventually puts his life in grave danger, and Isis rushes to try and save him.
A male student in Mr. Mason's scuba diving class does not like to follow safety rules and ends up getting trapped underwater as Isis rushes to try and save his life.
A teenage Hispanic girl makes innovative designs for flying model airplanes, but is hindered from competing by her brother and another boy who feel it's not a female's place to engineer planes. Isis knows they are wrong.
