Air date: 2017-09-29

Runtime: 25 min

Change is good for everyone except Arnold, who's worried that a new teacher - Ms. Frizzle's young sister - will alter the class's "ecosystem".

Air date: 2017-09-29

Runtime: 25 min

A field trip to the world's windiest mountain helps Keesha and the class strengthen a set piece for a sequel to "The Three Little Pigs".

Air date: 2017-09-29

Runtime: 25 min

Ms. Frizzle takes the class to Hawaii where an overprotecting Wanda gets schooled when she's forced to think like a tiny little fish.

Air date: 2017-09-29

Runtime: 25 min

Tim pens an original comic book for the school's upcoming time capsule ceremony that pits Weatherman against Captain Rock Man. But who will win?

Air date: 2017-09-29

Runtime: 25 min

While visiting a mountain made of magnetite, Ralphie and the class shrink to subatomic size to get some hot tips for their disorganized dance troupe.

Air date: 2017-09-29

Runtime: 25 min

Carlos plans to convince the principal to let the students keep a pet rat in the classroom. But first, he'll have to stop sneezing.

Air date: 2017-09-29

Runtime: 25 min

Determined to outwit an old rival, DA applies the art of animal camouflage to a schoolwide game of extreme hide-and-seek.

Air date: 2017-09-29

Runtime: 25 min

A lesson on water and its three basic forms -- solid, liquid and gas -- inspires Jyoti's submission for a "3-in-1 Gizmo That Goes" contest.

Air date: 2017-09-29

Runtime: 25 min

An out-of-this world class trip takes the students up into space, where a selfie-obsessed Keesha accidentally sparks disaster.

Air date: 2017-09-29

Runtime: 25 min

An icy glacier's eye-opening birth story helps a data-driven DA -- who's not one for public speaking -- deliver a talk to a sold-out crowd.

Air date: 2017-09-29

Runtime: 25 min

The class constructs a giant robot with help from brainy scientist Dr. Sarah Bellum, then takes a look inside Ralphie's nervous system.

Air date: 2017-09-29

Runtime: 25 min

A skittish Arnold looks to alternative energy sources to help keep his fears at bay while camping outdoors with Ms. Frizzle and the class.

Air date: 2017-09-29

Runtime: 25 min

Ms. Frizzle turns the Magic School Bus into a submarine to take the class into the ocean's darkest depths and retrieve Jyoti's high-tech locket.