Clover has trouble maintaining the sniffles. Her voice fluctuates between normal and stuffed.
When Dr. Gelee says that he will freeze the planet, his main goal is to get rid of everyone living on it. He then says that he will rewarm the planet and Clover tells him that he will be lonely living on the planet by himself. But, if he warms up the planet again, won't everyone just thaw?
In the scene where Sam ties her hair inside the submarine; during the fight when Sam is facing one of Dr. Gelee's minions, her bun disappears and it goes back to her long hair.
When Sam is trying to shut down the machine, she has her hood on. In the next scene, her hood is off and then when the camera is on her and Alex, they both have their hoods back on.
When the girls are in the submarine, they hit the rock with a crest on it. Sam says something like we've hit something, but in the window/background, you can see that they are still moving.
In the beginning of the episode, Sam is wearing pins in her hair. When they get Whooped down the chute, they are gone.
Sam: Sorry to interrupt your game.
Clover: That OK. I was losing anyway.
Alex: (While they're being chased by a polar bear) I thought everything was frozen over!
Sam: Guess he didn't get the memo!
Alex: (When Clover has a fever) You're probably the hottest thing on our planet right now.
Clover: If I wasn't feeling so miserable, I'd take that as a compliment.
Clover: (shivering) I could really use some chicken soup right now.
Alex: Would you settle for some breath mint? It's all I got.
Clover: Oh, great! Winter fresh.
The locations we see on the TV monitors are the Eiffel Tower in Paris, The Great Pyramids in Cairo, and the Statue of Liberty in New York.
First episode with Dr Gelee (with his brown hair)