This One Time at Space Camp... - S4-E18
Trivia: At the 1990 Space Camp, the Awesome Possums say the "way of thermal propulsion" is "Thrust first! Thrust hard! No mercy!" This is play on the 1984 film, "Karate Kid" where Cobra Kai students say the "way of the fist" is "Strike first! Strike hard! No mercy!"
Trivia: In the final scene, as Jack and Zoe are heading out of Eureka, they pass their younger selves heading into Eureka. This scene is from the pilot episode where Zoe sees another version of her and her dad. However, in the pilot episode, the other (older) Jack and Zoe are in Jack's original car, not his Jeep, and other Zoe waves at them. I would call this a mistake, but I'm listing it as trivia because I know someone would say "after they came back from 1947, things changed so this changed too."
Trivia: When Allison and Jack are talking about their relationship and marriage is mentioned, Allison says "is it so inconceivable?" This episode features Wallace Shawn (as Dr. Hughes). Shawn starred in "The Princess Bride" where his character was known for saying "inconceivable."
