A field trip to the center of the sun takes a dangerous detour when the school's safety-conscious principal, Mr. Ruhle, tags along.
Guest Cast
Lily Tomlin
voices Professor Fizzle
Nathan Fillion
voices Axle ValveStuck
Martin Short
voices Tony Tennelli
Jay Baruchel
voices Dr. Tillage
Catherine O'Hara
voices Aunt Tennelli
Birva Pandya
voices Jyoti
Gabby Clarke
voices Dorothy Ann
Matthew Mintz
voices RalphieCast Appearances
Kate McKinnon
voices Ms. Fiona Frizzle
Miles Koseleci-Vieira
voices ArnoldEpisode Discussion
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